I know that early on I had a hard time doing the right number of meetings for the same reason as you and they were getting very stale. I finally quit going to the meetings that weren't working and checked out some others.
Nowadays I've got 4 week that I hate to miss because they are so good. The other three days I save for my family.
If you try enough out you will hopefully find those that you want to go to - not just have to go to.
Good luck.