I decided on the super power I want. I actually think I can get it. It is conscious control of my brain chemistry; specifically, the ability to produce endorphins at will. Basically, the ability to feel good at any time.
I'm not interested in the ability to produce other chemical states. Particularly negative ones.
Perhaps at some point, if the first super power solidifies, I might seek another. That would be something like clear thinking, focus and energy, such that I could work toward the common good, or toward creating some positive outcome for some individual.
If I do succeed in getting the first super power, I predict that within six months I will have lost most of my excess weight.