Welcome back diva <3 I can def relate, I didn't drink but the temptation this weekend was very real. I'm glad your back and hopefully can make it longer next time!
Sorry rocks I know that anxiety all too well, I dropped out of college twice, I know it's really crazy feeling but I think taking the "one thing at a time" approach is the best way. The school is clearly giving you intense anxiety, I know it's not the best answer but classes can be retaken, I'm even concidering going back now the more and more I talk to people on here. If it's too much it's too much you know? Hang in there and try to eat something and drink some fluids.