The longer you leave it, the weaker he will make you. You know it's not right, you know also on some level that you are NOT wrong, or you wouldn't be on here.
He will not stop (trust me, I've been there) until he has removed all joy from your life.
My now X isolated me from life itself, I was pretty much contained in a tiny flat in Egypt for literally weeks at a time with no access to any communication, TV/internet for a 6m period. The longest stint indoors was 10 weeks, the same amount of time the Chilean Miners spent underground.
We moved, it got betterish, at least I had telly and a dial up internet connection in the end and a mobile with a couple of quid credit on it. I made it back to the UK and began to see how life needed to change. He came over and from the start I think it was clear that it wasn't going to work. he'd never go back to being the person I fell in love with. that person was all smoke and mirrors. never existed.
My last straw was when he told the husband of my ONLY friend out there (one I'd only get to see every couple of weeks for a few hours) that I'd been in a mental institute for 5 years, that he'd shagged 249 women and that he was having raging affairs all over the place. He told him this to get him to ban hios wife from seeing me.
That wasn't the last thing he did, oh no, that was to rip the Venus Fly Trap plant out from it's pot as it was in dormancy in my garden. I'd wanted a VFT since a little girl, but had never had one. I'd managed to keep it alive for 2yrs, and he ripped the heart out of it. Only because it gave me pleasure.
Don't abdicate control of your life to him. Say NO, mean it and make sure he knows you WON'T be told what to do.
Oh, here is a time saver: Don't think you can reason with him. Please don't bother to explain why you are feeling down, how if he were a little nicer, more supportive, less critical then it'd be OK. He will never, ever and i mean EVER change.
Buy yourself Why Does He Do That here It will open your eyes and give you back all the power you need to get you through this.
Trust me, being this side of an abusive relationship, i.e the outside - is a lifetime better than a second of being in one. You may be scared, but is it not scarier to think that life will never ever get any better, and in fact WILL get worse, the longer you stay in it?