Can someone possibly help me understand why I’m feeling the way I do?

I rarely ever go out and drink. I work from home and developed anxiety and social anxiety really bad. Friday night I went out with my husband and his friend. I got drunk and ever since Saturday morning I have been very anxious and depressed. I stayed in bed all day Saturday and on the couch all day Sunday. Now it’s Monday and I’m still feeling very down. Idk if it’s because I wasted the weekend away or what. Feeling like this sucks and I truly feel like I’m not myself.