Just remember, you can't be worse than I am. I actually had someone in fleet say "hmm, I should try FC'ing, since the bar seems to be set so low". (No offense was given, and none was taken.) I will repeatedly warn my fleets that I have no clue wtf I am doing, and will gladly hand of the reigns to someone who wants to try and do it better. If I inspired someone to run a fleet for no other reason than to save the corp from my terribad FC'ing, I still consider that a win for everyone.
The point is, it really is that simple...not everyone is Yng or Mangala, and that's ok. If you can get a couple dudes to follow you around and die in a fire and only kill 1 frigate, you're still doing more to help RvB than the majority of others. Just remember, it's all about fun. Winning is great, but simply having a fight is better. Don't be afraid to lose (sometimes I even do it on purpose). Anyone who rages at you for getting them killed won't be around in RvB for long anyway...