Advice from high levels/veterans, losing steam

[Tzeriel]

I've heard the "play what you enjoy" etc etc. I'm just in the doldrums. I log in and just stare at character select. I love playing here. I've tried all the classes I never tried on live. The past few months have been narrowing it down. So now here I sit, 5-6 classes I enjoy. Have a 14 Magician, 19 Monk, 12 Rogue, 14 Necro, 30 Wiz, 13 Bard. I just don't ever know which one to roll with. I've managed to stop robbing from them to gear others, I'm set on each one to make them playable. The question is, to veterans, how do you get out of this rut? How do you force yourself to nail down and play 1-2 things? I'm not in danger of quitting, I love the server, I just wanna get back to the content I enjoy.