I'm 20 years older than you are, but it's doable. I started 3 years ago at 434 lb. I've lost 90 so far with another 154 to go. I started walking like the other folks here. That works well. I just added a class at my local gym in water exercise. It's great so far. They concentrate on both aerobic and strength training.
It may sound strange since I'm still obese at 344 but I've seen enough success that I'm encouraged and am having fun.View Thread