Hi, I am in your same exact shoes. I'm 21, I weigh about 245/250
My heighest weight was 281 ( I am 5'11'') about 3 years ago and I don't know how I let myself get this high again. It is very depressing. However, I weighed myself for the first time in a while last week and it kinda shocked me into reality. So now I am on day 3 of a low-cal, low fat diet. I dont have a whole lot of time for exercise but I'm gonna try to work it in somewhere. But at least I can control my eating. Good luck! We can do this together.