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Maybe you can offer to work for free in a university robotics department as a staff programmer while taking courses or learning on your own. You probably won't be able to contribute much at first, but being able to learn with that social support is important, especially in an area where there is little in the way of autodidactic textbooks.
Analyzing my own eating habits, I think that the light, constant exercise factor is representative of regulated behavior that causes people to maintain weight. That is, exercising regularly is a reflection of a person's lifestyle (not a stressed out entrepreneur) that coincides with maintaining a healthy weight, as well as helping a person regulate their behavior (the good feelings and satiation make it easier to not have events where you eat crap).
I thought this was going to be about grad student life
Nutrition and Physical Degeneration by Weston Price