Skipping Class

So basically I have friends who'd make fun of me for my interests and belittle me for them. I started changing completely and tried to fit in. I kept my interests a secret and told no one, because I had went through humiliation by my relatives and developed trauma from it. I tried my best, but I just got manipulated by them. They said they'd kill themselves if I left or start a fight with me if I left. I stayed and my emotional state had gotten worse and I was basically living horribly because all they wanted me for was support and to feel better about themselves. Yesterday I cut of everyone who made me not myself and just made me feel horrible about myself.. Did I do the right thing?

Mine was 18 lmao