It's getting the balance right between doing enough exercise that doesn't cause pain,building muscle and stamina and losing fat and weight. It's not easy, but 14lbs in 2 months is great. With your attitude you'll get there. I'm not a fan of diets. After years of going up and down by a stone or more and trying various things, I've found the best way to keep on top of my weight is just to eat all the food groups sensibly and healthily with the occasional treat. The problem I found with specific diets is that once I lost the weight I'd come off the diet and the weight would slowly go back on. For me it worked better once I decided I was never going to do it that way again and I've managed to stay the same weight for the past 10 years, but we all have to work out what's best for us as individuals. Hang on in there and you'll get there.