I have to agree with everyone, prioritize !! I am a sophomore and I fell behind in two classes and I was a wreck for half the semester. Do your best to catch up on weekends, talk to people in your class to see if you can get notes/help on assignments. Definitely talk to your adviser and also consider talking to your professor. It is better to talk to them now and let them know that you are struggling, so they may be able to help you out in some way or another. Just take a deep breath and take it one thing at a time and soon the list will go down. Stay strong love and good luck !