I did that a few years ago. I stuck to it and lost 160 pounds.
I can tell you, the world is a much better place when you aren't fat anymore. It is MUCH easier to carry all day. It is MUCH easier to conceal my gun, even a BIG gun.
Then there is the fact that everything is better. Sleep. No pain in the knees when walking. Easier to find clothes that fit.
I wish you good luck and stick to it. The pay off is way sweeter than any cookie or sweet treat you can put in your mouth. I would much rather look and feel the way I do now that enjoy a momentary treat and gain a pound or two.