I'm 58 years old and live with my daughter and 3 grandchildren. I have gone back to college and am in my 3rd semester. I have been successful in the past(or should I say partially successful) losing weight. About 5 years ago I lost 110 lbs. But have gained about 70 of that back to date. I have severe arthritis in my legs, mostly my knees but it also affects my hips and ankles. My Dr told me years ago to stop walking and get a wheelchair but I refuse to give up on myself. I have an exercise bike, that probably has not been used like it should, but I am going to remedy that. My exercise goal is to get to where I can walk at least 4 mph instead of the 2 mph that I can go know. I would eventually like to walk a marathon, not run but walk. I realistically do not think running or even jogging is in my future. But maybe I can surprise even myself. My biggest diet challenge is that I obsess over food, especially when I'm trying to diet. The minute I finish eating I am thinking of what and when do I get to eat next. I'm afraid I won't eat enough or maybe too much. This site is going to help a lot and it would be nice to meet some others dieters as well. My family doesn't seem to have faith that I can do this, and I don't blame them because they have seen me start one "diet " after another and not stick with it. I say the word diet and they all run off in different directions.