yeah i feel like that also, its really annoying when you want to do something but cant bring yourself to try properly , even thou you know you can do it if you give it 100% effort . i think the problem is that you have read about, heard and seen to many bad things happen so that its in the back of your mind that's whats happened to me , because when i started out i never even considered that my chain could snap or that my hub might skip but now I'm always thinking that. i guess you've just got to go for it and what ever happens, happens.