I re-joined on 6/11/12 and have not regretted that decision!
I hadn't realized that to get health I had to change the way I eat and had to move more as well the first time that I joined, but I now I get it.
I'm sure that you are ready this time for the needed changes!
The key to success here is to be active and you've already started by joining. You will find that everyone is willing to help you out if you need it. Spark friends are here for support, motivation and encouragement. Good luck on your journey to a healthier lifestyle! Again, welcome back to the SP family!