senior year has been the worst

I'm actually losing my fucking mind right now. It's been two weeks since school started and i'm nearly failing three classes...3 FUCKING CLASSES...Physics is kicking my ass right now, i'm behind and so confused. I asked my mom to help me and I think she forgot she agreed to help me with my school work. So i'm gonna be embarrassesd as fuck tomorrow with my like 10 missing assignments in physics. I need to ask for help, but I just feel so umcomfortable walking to the front of the class and asking for a pass for third period. I hate myself so much...I just wanna die at this point..I'm tired man, I can't take much more and I pull all nighters, yet I still feel like I haven't accomplished anything at all. :(