I need to decide!

as long as I'm me and everyone else is everyone else I can't be who I want to be, I have to be the me that already exists. I guess I can try but how do you start something like that? do you start with a single leap into the unknown or do you take small steps to get there.

Do I tell the guy I like him now or do I wait and get to know him (something I don't usually do and am not good at) and then tell him?

Do I just decide to be happy or do I take it one happy moment at a time?

Do I learn to flirt and then put it into practice or do I blindly flirt hoping its right?

Do I change who I am now or wait until college when I can start over with a blank slate?

From where I'm standing I guess I'm still confused...