Once I lerned how to control my powers, I will try and try and meet with large companies and work with them to find a way to transfer my power into energy for the real world to use.
On a related note I say watchmen again and I do believe with unlimited energy will lead to great things, peace a better life for everyone, and a more focused governments that benefit the world and man kind. Try my best to do this without anyone knowing what I am capable of. Go fast enough for them to think this just are happening in a godlike manner should work.
I would spend alot of time learning stuff. Since I can learn and practice at ridiculous speeds, I should get pretty good at things real fast.
With my no doubt large political and financial pull I will have. I will develop safeguards and things that can protect me. Have doubles, protective suits, bases that I should only be getting into because at my rate there will be people trying to kill me or control me for the type of power/influence I will have.
I would do a shit ton of traveling. Bust out the world maps of cool shit and use a gps to help me locate things.
Try to do my best to reverse the effects of all the pollution for the past few hundred years. But Again I am just a normal dude and would have to work with scientist and stuff, but yeah the world is going to rock.