I don't know anymore

I've been dealing with depression for a while, and it only seems to get worse. Everyday I hate myself for every little thing. I've also been having a really hard time focusing on schoolwork and I miss a lot of work. When I give up on homework (usually because its hard for me to focus or it's just too hard), I feel overwhelmed and hate myself even more. I feel like I can never amount to anything and that I am useless. My current situation is: a group project that is due tomorrow, I'm supposed to draw a bunch of frames for a psa video but I'm struggling with my mental health. I eventually gave up on it and now I hate myself so much. My groupmates keep texting me "are you done? we need this video finished!" and I've been avoiding them. I feel like a terrible person and I really want to self-harm or even commit suicide. I'm so overwhelmed and don't know what to do. God, I feel like I'm victimizing myself for posting this or threatening suicide, but I really am in a bad place and it feels like the end. I'm a bad person.