“A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.”

― Robert A. Heinlein

Become an electrician or power systems electrical engineer. Because in a gold rush it's a crap shoot which prospectors will win & lose. But being in the Picks & Shovels business is a (relative) sure thing.