Best thing you could do would be go to a gym and spend some on a personal trainer who can set you up with a diet and exercise program. If that isn't an option, start slow on your own. If you're really heavy, running may not be good for you. A brisk 30 min walk every day is good exercise. If you just start with that and lay off the junk food you will start to feel better.
I'm a big believer in the "ramp up" theory. Start with the easy stuff, then when you get used to that tighten your diet more and workout with more intensity. You are really looking for a life change and it's a lot harder if all of a sudden you cut your calories to 1500 a day and try to spend 2 hours in the gym every day. At this point it sounds like anything is an improvement, so get away from the computer and take a few laps around the block.
I'm a big believer in the "ramp up" theory. Start with the easy stuff, then when you get used to that tighten your diet more and workout with more intensity. You are really looking for a life change and it's a lot harder if all of a sudden you cut your calories to 1500 a day and try to spend 2 hours in the gym every day. At this point it sounds like anything is an improvement, so get away from the computer and take a few laps around the block.
