Well, on the opposite end. I was playing in a very serious band, I joined them nearly 2 years ago. My joining raised the level of the band greatly, not bragging, just facts. We range in ages from mid-50's to mid-60's, I am 62 so right in the middle. Our popularity grew very quickly, we were playing 6 to 8 shows a month and the requests for us just kept coming in and no one wanted to say no, everyone but one of us worked a full-time job. We finally slowed down after Christmas last year and took at month long break before we started on new material. The schedule started up again in late March of this year and the jobs just grew. We all burned out. Set up and tear down of a high powered show takes its toll on a bunch of old men. I suggested that we get some help, but everyone was too drunk on the money, it was very good, not great. By the time we got to the middle of June I was about done and gave my notice, I was done on July 4th. They convinced me to finish the schedule which ended at that time in October, my compromise was that I would not be there for set up or tear down, other than my equipment. By the time we got to July 4th, everyone was getting pretty chippy and after a show on July 3rd and some garbage comments from one of the guitar players, I quit on the spot. It didn't help that for most shows I was driving an hour more that everyone else, but not the deciding factor. I have been doing this since 1981, took time off when my kids were small, but pretty steady. Right now, I don't miss it.
I used to have a regular basement thing with some friends, we would get together every week and have some fun playing and fun doing some other stuff. Everyone once in a while we would play out, when we wanted, we could have done a lot more. Every once in a while we would go to a little hole in the wall neighborhood bar and have an open jam and the place would be absolutely jam packed. That was a lot of fun, no pressure, sometimes we ended up playing the whole night, sometimes someone would show up and want to play bass and they ended up playing the whole night.
Set your expectations properly and learn how to have fun in any situation.