I'm annoyed by the phrase 'do or do not, there is no try', because I think it's wrong and there very much is a thing called trying and it's important. 

However, it's a phrase that's so cool and has so much aura, it's hard to disagree with it without sounding at least a little bit like an excuse making loser who doesn't do things and tries to justify it. 

Perhaps in part, because I feel/fear that I may be that?