Competitiive Edge

How do you get that? Is there a pill? ;)

Being a non-athlete, I don't really feel like I have it.

In things I know I can excel in, I do, like cards, darts, etc. But in most athletics, I feel like I give up before my competitiveness kicks in.

I want a competitive edge so that when I'm in a race, it kicks in and I stop thinking about how tired I am. Is that so much to ask?

But since I never competed as a kid, I'm not sure if I'll ever get it, or if it'll just take a while to teach this old dog new tricks.