To put this in perspective, you're taller than Tom Cruise.
The interesting point with these sorts of responses is they follow the fallacious logic of 'here is an anecdotal example of somebody with your disadvantage succeeding due to separate advantages, therefore you don't have a disadvantage at all.'
I don't know about his confidence, but he's got really good looks. He doesn't have much acting talent (in my opinion), still he is so successful in his field. I suppose looks can take one far, really far.