Good luck man. I've been programming all my life and still love it. Javascript is a great language to dive into.

Always be working on a project. Come up with an idea, like tic-tac-toe and start hacking on it, until you are finished. Then cook up another idea and hack on it. Without an idea, you'll just float around. Get Firebug and learn to love jQuery, it's magic.

And if you want to be great, you don't want to be a programmer, you want to be a hacker. :)