Sharp'inun twist drills

The problem I have..........just like the trailer project..........is that I'm always trynna hog some thing together out of junk. So I somehow end up tryin' ta drill a hole where I should NOT, or ream one out that's at some impossible angle...............and..........I'm always tearin up bits

My neighbor works at a marina, and he couldn't understand that, until we both realized that what he mostly drills is glass and aluminum