I think it is way wrong to let a good time get bad the next day. Life is present and that is where it should be supposed to be good or bad. If you later on find out you could have done something differently of probably better, it proves just one thing: you are a control freak and cannot be happy without doubting it. Judged from the present there are impulses and decisions to guide you. You might learn from them to next time avoid what went bad. Don't let the past reign your life. Whew... philosphy lesson in English....