Struggling to detach myself from family

Ive had a lot of trauma from my parents and their toxic environment and i still relapse on bad habits because of them.

Its fucking my head up, my mother has narcissistic behaviours and always controlling but always victimizes herself, i dont know how i will be able to grow in an environment like that.

Ive been living by myself for two years now but they are telling me to move back in with them since also im in uni and they are paying for me.

I find myself always being burnt out and when i try to set boundaries they call me selfish.