Let me first say I'm not a financial planner, but this works for me!
I don't know how you keep your checkbook, but I found that doing it in an Excel spreadsheet was really helpful. I log everything; date, vendor, amount, and also a category (utility, ATM, etc). Then at the end of the month I can see where I've spent what. If you are still charging on credit cards, do the same thing with your credit transactions. Classify each of them so at the end of the month you can see where you can cut back (dining out, shopping, even kids activities).
Make a list of all of your bills and the dates they are due. If they have the same amount each month (like a trash service for example) include that. If you pay about the same every month (like water bills) figure that in. Add it all up and see how much you owe, versus how much you make. Now you know how much you have left to "play' with, whether that's going out, savings, etc. or how much you are in the hole each month and you need to make up. Then get a calendar or day planner, and write down the days you are going to pay bills. I also circle payday with a big red marker for the whole year. If you have 3 bills due before the 15th, pay them all on the 12th; 6 bills due by the end of the month, pay them on the 25th, for example. Of course work it out to when you get paychecks, etc! I know that for me it helps to be able to physically see when bills are due by looking at a calendar, because then there's no forgetting it and paying it late!
It's going to be tough to get a system that works, and the one I described is what works for me. But once you find something that works for you, that you can stick to, hopefully you will be back on track in no time. Good luck!
