Haven't posted my own idea, hm.
If I had amazing powers, but a squishy mortal body, the first thing I would do is try to create a golem or something that would protect me and observe potential threads to health and safety. The problem is the golem itself and its design.
Probably the first prototype won't resemble anything human, which is an issue if you don't want to attract unwanted attention. I'll attempt to make it look more like a person, lass or lad, which can perform basic communication, mimic humans phisiology and psychology. I'm not sure if I'll give them free will or not. I'm afraid if I make them too real and appealing I might fall in love with them, which would be awkward.
After acquiring a few guards and allies I would begin to perform tests and covert operations through proxy groups. My goals would be to help humanity though creation of replicating advanced technology and illiminating some of the more "problematic" groups.