I know what you mean about being sick and tired of being sick and tired. You came to the right place. That's one of the attitudes I came to SP with and I have never looked back after being here. I've lost 10 pounds since the end of March, 2012 and it has stayed off. Kind of plateauing right now but I know it'll all come off at one time cuz that's what happens to me. :)
You came to the right place. Now all you have to do is find some good teams to join up with. Let me know if I can help you with that. I've got a couple I'm co-leading and one I'm leading at the moment with the possibility of helping a couple of my friends and buds here start out on their own teams.