- Figure out what you can positively help out with and just concentrate on that. I have found that in the past this is what I needed to do when I was sure that something was going the wrong way.
- Sit this release out. If testing isn't what you want to do, then stick with Fedora 14 til 16 comes around and you can help out there. Sometimes taking a vacation from things can make you really aware of what you want to work on and what you don't.
- Choose or make a different desktop. If Gnome 3 is not what you want to do, there are multiple other desktops to try and work with...
- Choose or make a different distro. There are multiple ones that may fit your personality and wants better.
[Edited to make the title clearer]