On my controller I fit all my skills on one main bar, one secondary bar wtih AOE and songs, and the extended hobar for eight extra skills. It's very easy for me and switching to my AOE/song bar takes...no thought.
If your controller setup isn't working then change it, or just practice using it.

What rotation do you use? I've honestly never been kicked from a dungeon or raid just because I was a bard. Everything cgbspender said is good advice so I would start there if you are having some trouble.

And yes absolutely use WM and don't use Wide Volley. Poor, poor awesome looking useless skill.