Weight Watchers

I started weight watchers last week. This is only day 3. And it is the beginning of a new week. I did pretty well so far. I am staying under my points. I am exercising a little. I can't do much right now. I don't think I'm pushing myself as much as I can right now though. I have back problems and am worried about that. Also I have a bad knee and dont want the knee cap popping out on me. But I need to move past those issues and just do it. Im not gonna just waste $40 a month and not do the program 100%.