Damn Willco. You look like Jonah Hill's brother. (face)
Loosing weight is easy by the way, don't know if you're interested or not, but even for health reasons man. The hard part is the is gonna be the skin, at your age you will have to work out.
You can do it in a year, i know it sounds like a lot of time, but you will lose most of the weight in the first 4 or 5 months, and that will keep you very motivated.
If you live alone, it's the easiest shit, just don't buy bad food, so when you are on your pc or watching a movie whatever, you won't be going back and forth to the kitchen because of them cookies.
Stop eating bread and cakes too.