I feel really guilty for wanting a divorce, husband said he would change but my heart was already gone.?

I feel really guilty. My husband always made me feel really bad about myself and made me feel like I couldn't do anything right, or good enough. He was controlling over what I did, who I saw, even made me feel like I had to watch my every move in public. I tried explaining this to him but he was always too busy trying to get his business off the ground and trying to get us into a house. Well, I wound up leaving, and I feel really good about myself, but I feel so selfish. We have two kids, he wanted to make things work 2 months after I moved out but I felt like we would end up in the same place because my heart wasn't in it. How do I get over this guilt? He doesn't understand how we are two different people, he's 10 years older than me, he's Muslim, I'm not. We can't even have conversations because he doesn't think the things I have to say are important. Now, he keeps telling me "congratulations, you finally got what you've been working so hard for (divorce)" and I just feel like crap. I wish I loved him, I wish I could allow myself to settle with someone who doesn't see who I am, but I can't. I can't act like I don't resent him for not allowing me to grow up on my own time. I've been trying to be this person he wants me to be for so long and now I can finally breathe. But this guilt is making me sick. I can't eat, I can't sleep.. I look at my kids and feel like I've failed them. I just don't know what to do, I can't even afford a therapist until school starts up again! How will I ever know if I made the right decision?