I don't know, but I wish I could figure it out. I as well tend to go from 0 to 100 in like two weeks. It's frustrating. The only thing that's worked for me in the past is working out with someone (someone reasonable) and only working out when with them. I think that's the only time in my life, except when I've been hospitalized, that I've gotten a "normal" amount of exercise. Let me know if you come up with any bright ideas.