If you don't know what you want to do, going to college is silly and a waste of both time and money. The machinist recommendation is great, and I would recommend many other skilled trades; electrician, IT technician installer, plumbing or HVAC tech, heavy equipment operator, heavy equipment repair tech, industrial maintenance, carpentry, ironworker, etc. Trades are starving for smart young people. It's not back breaking work anymore either, very safe and good working conditions, plus you get to be outdoors frequently, move around job to job so you never get bored, etc. Money is good, and the sky is the limit for someone with some drive and willing to take on responsibility.