Work Christmas party hangxiety

Help 😢 I have the WORST hangxiety after my staff Christmas party… any tips on how to cope? I’m at the point where I feel sick, my head is spinning and I can’t stop crying and it’s 8pm. 😑 I drank too much and ended up blacking out for an hour or so and my coworker told me I was ‘sh*tfaced’ and I’m really struggling to get over it without pure hatred for myself and feeling down/guilty. I can’t remember anything I did that was really bad but I’m scared I did something and don’t remember 😭