Welcome.
The key to weight control is increased exertion, in the right manner, as well as eating 5 or 6 SMALL well balanced meals per day.
Studies indicate that eating less food, more often, along with proper exercise, will speed up your metabolic rate, and if you add some heavy lifting involving your larger muscle groups, your body will also increase its natural production of Human Growth Hormone.
(turn fat into muscle)
Start off slowly, work your way up to extreme exertion, and you'll be in great shape before you even realize it!

It has to become a habit, and after awhile you'll begin to feel amazing!

Good luck!