Hey there WhisperingHope...
You've already taken a very important step...deciding that NOW is the time to do this. 3FC can help, but that determination and motivation must, ultimately, come from inside.
I used to think I was just lazy too..but that isn't an immutable characteristic like eye color...it is a choice.
Settle in. You may want to look at the 100 lb club (a group of individuals who have lost or are on their way to losing 100 lbs or more) or the Depression and Dieting areas...both might be good places to start.
Other than that, jump in wherever and get to posting. Can't wait to get to know you better!