I was in the same boat you're in right now about three and a half years ago. I was up to about 190 lbs or so (6'-0"), not fat/obese by any means, but I had a serious lake of muscle and about zero cardiovascular fitness. On top of this I wasn't very motivated. School and work were running my life and most of my friend weren't overly active. Shortly before spring break I finally said enough was enough, I couldn't keep living that way because I knew I would comprimise my future if I kept down that path. At first I just went to the rec facility a block from my apartment (The Shell @ UW-Madison) before class in the morning and rode a stationary bike or went on the elliptical machine. I didn't see much of a difference because I didn't change my diet at all, but I did start feeling better overall. A month or so pass and I get horribly sick and stop working out in the morning, start feeling worse again, put a little bit of weight back on, etc... About a month or so before the end of the school year I start dating the woman who's now my fiance and I find out she use to be a runner in high school. First thought is I'll never do that, too fat, too slow, etc... Well she goes back home for the summer and eventually I work my way back to going to the Shell again. One day I decided to run on a treadmill. Like an idiot I figured I could do a couple miles without a lot of trouble, I mean I've been riding a stationary bike for 45 minutes or so, no problem. That run was more painful than anything I've done since, I ran one mile in 8 minutes... for some reason a couple days later I went for a run outside, and again, and again... Less than a year later I ran a half marathon, a year after that a full marathon in 3:27 minutes, and in a little over a month I'll be running the Chicago Marathon with hopes of running under 3:10 and qualifying for the Boston Marathon. Now I'm not going to advocate running as your only form of exercise, but I would strongly suggest you incorporate some form of cardiovascular exercise into your routine. If you already own a bike, go for ride a few times a week... Try going out for a run (start slow and short if you do)... Get some friends together for basketball or football or soccer (etc.)... As far as strength training, that's not an area I know much about. If you were to meet me you'd understand. Maybe someone else would have some decent suggestions as far as that goes. The dieting part of losing weight can be the easiest and the hardest at the same time. The first thing I would suggest would be to pack your lunches when you go to work/school, you probably don't want to know the number of calories in fast food, but I'm sure you're aware of that. It's a lot easier to control the amount of calories this way. Second, eliminate soda (or at least regular soda, try Coke Zero, amazing...). Try to eliminate or reduce what I call "white things", not milk of course, but sour cream, alfredo sauce, mayo. They're loaded in calories and fat. Definitely eat breakfast, it increases metabolism and imo is the best meal... There's a bunch of other things you could do, but in the end don't do something only because one of us is telling you to do it, do it because you enjoy it and it makes you feel better! Good Luck!