I’m stressed

so ima start from the beginning. I met this guy at a party and I was angry at my roommate because she broken my tablet and I was drunk so I ended up losing my virginity to him and he made me his gf. I don’t know what to feel or how and he always find a way to criticize me and point out my faults. He steady wants to do nasty stuff on camera but I’m too shy and my I don’t won’t to but he won’t take no for a answer. My mental health is declining and I don’t know what to do but I don’t want to diss appoint him and he leave me for somebody better. I want to cry but it won’t do any help