When will I learn?

That I'm not 21 anymore! I went to a friend's house last night to have a quiet night hanging out... and somehow I ended up drinking a few too many cocktails and staying up way too late! I mean staying up until 2:30 am = crazy! Gah... my head isn't too appreciative... and my body is revolting too. My plans today had to be amended a bit... I wasn't able to get to the gym this morning, but I did get a few errands done. Sigh. I need to give up drinking...