I feel so awful and messed up inside.

I feel lonely. I feel like a failure even though I am still doing my homework and going to class. I know a lot of this is my depression. I feel like I should just quit before I fail. I'm sad. I'm angry at my T and so I don't feel connected to her. My mom called me fat (not in so many words) when I saw her at my grandfather's memorial service. I can't stand being around her. I hate my life. I feel screwed up inside. I don't see the point.
I feel bad for not being around more and supporting others but I have just been feeling overwhelmed. I'm sorry.