Dryer not drying, checked hoses/connections, disconnected hose from dryer & wall & vacuumed it to see if excess lint had clogged it up, my home has no vent outside, are air ducts or something else clogged? New house, dryer is 1 yr. old... h e l p !

You must have a vent to the outside hence how can you state you disconnected hose from dryer and wall...
Anyway, when you had the exhaust hose disconnected from the dryer did the dryer work and heat up at all? I take it this is an electric dryer... yes?

Yes, when exhaust hose was disconnected from dryer, it was heating properly but I was concerned of overheating, a fire or carbon monoxide, maybe?. I have a separate laundry room & unless I don't see it, there is no vent outside the house, I assume everything is blowing and/or going up to the attic area/air duct area?.

First, I unplugged the electric dryer, disconnected exhaust hose from dryer & the wall(inside the laundry room), vacummed the exhaust hose & the hole it is attached to on wall but it still didn't work, it seems all clogged up? It's a new house & the dryer is not old either, I basically have no dryer now... :(

Check lint trap.. if mine fills up than my dryer doesn't dry... but I'm sure you already did that.. but I figure why not say it anyway.. lol (trying to help)

I appreciate all help/advice, yes, I always remove lint, most likely dryer is clogged somewhere? Thanks for your advice anyway :~)

Remove the blower housing and check it for lint build up. Also check and may sure the blower motor is working

Your dryer has to vent to the outside somewhere. How does it blow the exhaust to the outside? There has to be a blockage in the vent to the outside somewhere as you said that the dryer worked OK when not connected to the vent. You're going to have to look outside for where it comes out and clear the clog or you will have a fire in the vent from all the built up lint.