I think you can go from being not very funny to working really hard for 10 years and figuring out how to make a living on the road, but I don't think you can rise much above that.
I tend to eat pretty healthy, though, and I work out - I work out hard.
Comedy isn't really something where you get discovered. You can't network your way to being funny or talented. It's not hard to get seen if you're funny. If you're funny, talented, and work hard, you will go somewhere.
I asked for a glass of Chardonnay. And in a 9/11-like twist, they didn't have any. They offered me Pinot.