Hi Lisa. I'm going to say first off that since this is a comprehensive problem and probably worth some credit, I'm not going to give you answers or tell you exactly what is wrong. I'm going to attempt to lead you the right direction. It's your work to do. i.e. I'll "help" but not actually do anything for you. And I know this is quite long... but I had stuff to say, that's really too much for a forum situation. But there it is.
First we have some lessons to learn about journalizing. I believe except for one entry, you seem to have the debit/credit rules OK. All lines of entries consist of three things: the account name, the correct dr/cr side, and the amount. You seem OK with the dr/cr side thing, and the amounts are all OK. It's the account names you're mostly having issues with. Part of it is a lack of understanding of how you're supposed to be journalizing (i.e. technicality of how to get it on the paper), but there's also a couple that are interpretation from the transactions.
When you journalize, you use the exact account names as they are in the ledger. You're doing a couple of wrong things... one of which is more picky, like getting the idea but not the exact name. (i.e. Jim's Drawing instead of Jim Arnold, Drawing). Now those are the picky ones. But the non-picky ones are where you've either described the transaction or just made up some account that doesn't exist. Like Electric Bill Expense. There isn't any Electric Bill Expense. It goes under Utilities Expense. You posted most of those to the correct places -- now call the accounts on the journal by the same name.
I wish I were able to format on your worksheet so I could bold or color certain ones, but it's locked. Take a look at July 1st (last one), 3rd, 5th, 7th, 11th, 19th (1st one), 30th, 31st. That doesn't include all the account names you've been making up, but you've repeated some of the same things over & over.
Now, another issue about posting. You have some outright wrong accounts on a few things, and yet posted most of them to the correct place. That's just a no-no. The fact that it got to the right place is good, except that you make the decision of what account to use while you're journalizing, and then you post to the account you used. If you decide you used the wrong account as you're posting, fix the journal entry!
A good example of this is the 3rd entry. You debited Photography Equipment. This is not paying close attention to what the transaction says, because it specifically says supplies, not equipment. Those are two different categories - supplies is a current asset and equipment is a fixed asset. Not the same thing at all. But... then you proceeded to post the thing to the correct account. If you realized that was incorrect on the journal entry, fix the journal entry.
First one on July 2 - same thing: you journalized to the wrong account but posted to the correct one. Supplies aren't an expense until you use them. Same thing with the 2nd entry on July 9th.
Here's a real fun one: that same 2nd one on the 9th. You've credited Cash when it was purchased on account. But then you posted it to Accounts Payable!! Quite personally, I don't know how the heck you could have even caught that while posting, because there wouldn't be any way to remember what that entry was later when you're posting. (And you shouldn't need to remember. As I said, you decide where things go while journalizing. Posting should only be copying mindlessly without having to decide things.)
All those screwy things made it that much more difficult to checkyour work. I was checking journal entries and many were messed up, and then most of the account balances were correct. So that took me quite some time to figure out why. Which is one reason not to do this -- it confuses other people who are trying to look at it. And your journal entries are your record of the transaction itself - not the ledgers. The ledgers are the balances of specific accounts and don't say where they came from or what the transaction was. If anyone needed to see the transaction itself, many of them are incorrect and wouldn't make sense.
Here's a delightfuly screwy one... 2nd one on the 19th. Your journal entry is dr A/R and cr Service Revenue. (Which should be Photography Revenue since that's what it's called.) There was no revenue. The customers were just paying on account. When the customer pays you, first, you get the cash. Second, it comes off the receivable. You aren't earning anything. You earned it, and recorded those earnings, at the time it went into the receivables to begin wtih. And yet... this managed to get posted correctly! I'll never figure out how you managed to get that into the accounts correctly but have the entry itself entirely screwed up. The entry makes it look like you don't understand it, and I don't see how you managed to fix it while posting. Unless of course you copied off someone else. But any instructor who looks at this closely is going to wonder what the heck is going on.
Now one that is a matter of interpretation, on the 12th. It did occur to me that the lighting would be a fixture. (Although the account is called Furniture & Fixtures.) However, I suspect that lighting is for the photography, as opposed to just normal old lighting, like for the office. Since it's likely specialty lights, I personally would put that under the Photography Equipment. But that is my opinion.
Now, all of the above is prior to adjusting entries. I haven't gotten that far cause it took me quite a while just to go through the other stuff and figure out what you did. (Not having an answer key makes it difficult.) But you need to fix that stuff.
As to why you're out of balance... I've only found one error so far, and one of them you should have caught. Apparently you have not been taught why you put posting references on the journal. Take your eye and run it down that column on your journals. See any problem?
You now need to know how to find errors when you don't balance, and it's obvious you have not followed these steps because there's a glaring mistake if you check everything. So you do the following:
*Re-add the columns. (Since it's in Excel, that one is not really necessary, though it's not a bad idea to check the equation itself.)
*Figure out the difference between the two columns and write that down. Look for this number everywhere - in the trial balance, the ledger and the journal. You could have just missed something.
*Take that above figure and divide it in half. Things that are on the wrong side will double themselves. So divide the difference in half and look for that number too, everywhere.
*Check that you copied each number from the ledgers correctly. Be carefuly when doing this. It's easy to see what you think you should. And good idea to mark each in some way as you go or it can be easy to miss that you've left something out. Check carefully for transpositions (1234 as 1324) and slides (1230 as 12300).
*Check the ledger accounts themselves for the math - i.e. rebalance and make sure they're correct.
*Check that you posted everything. That's where those posting references come into play.
*Check that each journal entry balances to begin with.
*Very last thing if you are still stuck: check all the postings themselves. And you must mark each one as you go, both on the journal and on the ledger, or you would never find anything. This ones gets left for last because it's tedious and difficult, and hopefully you find it before you get to this stage.
*Each time you find a mistake, be careful about correcting it, and then start back at step 2, figuring the difference between the 2 columns since it will have changed.
Now, much of the above doesn't need done cause I already know they aren't the problem, but for future reference. (The italicized ones you really need to do.) I've found one mistake, but you've got at least one other mistake somewhere. I found the obvious one but have not actually checked the trial balance itself yet. I will do that if/when I have time, but there's an obvious one, and you've got other stuff to fix.
As a note, you really shouldn't attempt to do adjusting entries without a trial balance that is correct. If any of those entries are dependent upon those balances, that'll screw you up and you have to fix them. And... when you go back to check that you copied everything to the T/B correctly, it just makes it more difficult when you've already got adjusting and closing entries posted. And once you find the mistakes, you're going to have to carry the corrections all the way through the worksheet and statements and closing entries.