It's been a long time since I've turned to Y!A, but I'm really in deep tonight.?

Maybe tell her some of this- she may be a bit annoyed, but she'll understand (she sounds very understanding). Just let her know that you have been struggling to get everything done and that you have a huge amount of stuff (I understand by the way- paranoid schizophrenia in my senior year, missed four months), and that you will do better. Definitely do get some sleep and don't try and do it now though. Just tell her that you are still trying to pull things together and it is slowly stabilizing. Good luck.