You might want to take a basic reading course before you sit down at the computer again.
1. All regionals are not equal, and Mesa certainly isn't number 1 - however, it's not as bad as people would paint. It's not great, but it's not horrible.
Then is it as bad as you guys paint? When you share a crewroom, other people hear and see your dirty laundry. It's scary what you guys have to put up with.
2. Amen.
3. Nope - if Mesa works for you and you're an adult then you'll be fine at Mesa. If you can't handle actually having to work for a living you might want to try and find a job where that's not necessary, but good luck with that.
A picture springs to mind- Who built the pyramids?