Changing goals

Up until 2:30 this afternoon, my goal for the nutrition challenge that starts tomorrow was to complete it and get a handle on my eating. I was really thinking that I would be facing restricted activity for the foreseeable future. Since I have no desire to get over 200 lbs, I wanted to get my eating in line to keep my weight in check. Now that I have basically been given the green light, I think I want to set a goal. I work well with goals, I just can't decide what kind of goal to set. Should it be a weight goal? We earn points for the things we do, so should it be a point goal? I'm really torn. I definitely want to get my eating in line as I'm pretty sure this shoulder is going to require surgery so I will be facing a time of little activity, but that will not be for a while. For the next 45 days I am free to do as I please, well to do what I can. I'm starting adding walking in tomorrow morning. 20-30 minutes on the treadmill to start. I still have the hope of running, but I think I'll wait until there is a little less weight on my knee. I would love to get into the 160's. That would mean 25 lbs in 45 days. Not unheard of, done by many people. It will take dedication and commitment. Can I do it? I don't like setting goals that I know I won't reach, but at the same time I don't want to set a goal that is too easy. Decisions, decisions. I will sleep on it and decide in the morning. Good night.