Not coping well.. help ?

I feel like someone is sitting on my chest and it's been getting worse, I just feel horrible about my entire life, my mother is abusive and a drunk and I have to live with her till I can get a job that earns me enough to move out...people generally don't like me and I feel like no one does。 I think my Bf is getting tired of me because I cry so much and am jealous and insecure. Just can't breathe and idk how to make it better. Hope that makes sense