So you got upset because you were out a little too late Friday night?

Friday nights are for having fun no sense in beating yourself up over staying up too late Fri/Sat night. Let yourself be free and enjoy your life. If you get less sleep Sunday night then you can adapt with caffeine or something.

People might not agree with my suggestion here but the way I see it, you will never get this time back. Enjoy it to it's fullest. You can always get another job or do make up work or whatever for what you got going Monday but you will never regain lost time.

That's the way I see things now. I live in the moment. Learning to enjoy life does wonders for my mental health.