This was something I got from someone else, not advice but a comment. I was figeting about waiting to go on at an "open mike" at the Poison Apple in Chicago back in 1966. There was this young guy up on stage singing something boring or perhaps being boring when he sang I don't really remember. I was standing next to Mississippi John Hurt (I was so engrossed in myself and my annoyance that I hadn't noticed him) He could see that I was annoyed and agitated and that I wanted that guy up there to get on with it and get off the stage so I could do my thing. He smiled this wonderful smile, cherubic smile, and said "He sure is having fun". Things changed for me at that comment. I suddenly realised that if it wasn't fun it wasn't worth it and if it WAS fun, then nothing else mattered. I was humbled and enlightened at the same time. So my advice (given by others in other responses to this thread but worth repeating)

Have FUN!

CB