people that say I can't
I wanted to say that one teacher I met once said: "stop trying and do it".
By trying you are trying to do this half way and with doubts, this is not natural, when one is doing something one does it completely and without doubts or hesitations.
It's also o.k. to be insecure, but when you're trying something new and are affraid of it, my advice would be just do it (like the nike thing!). Everything will be o.k. naturally!!