Feeling like I'll never be good enough

I have this feeling that says I'll never amount to anything. from the looks of it, out of my siblings, I might be the only one not going to college. out of my parents kids, I'm the main one with health issues. out of everything that's ever happened in my life, somehow I was told I was to blame or that somehow it was my fault. I have this feeling telling me that I'll never be good enough because of how I was raised. I'm in trouble? I can't talk back unless there was a question asked or if the adult stopped talking... that's why I have trouble communicating how I feel with my boyfriend,because I was never taught to properly communicate my feelings, because even if I did, no one gave a shit.