Look, ambition’s good. Now do something with that ambition. Look to start a company or something.
Do research. There’s a lot in your posts that makes me think that b-school adcoms won’t consider you at the proper maturity level yet. There are deferred acceptance MBA programs. There are master’s programs that don’t require experience. You can look to do a lot at 19 (travel the world, volunteer, start a business) that will increase your maturity level.