re-posted this, I accidentally put this in the wrong location first time. So just posting it where it should have been the first time. I know the common saying is "its never to late to ..."etc. But I'm 21 almost 22 about to medically retire from the military. Ive been struggling since I was a kid till now as most people do deciding what they wanna be when they grow up . I've wanted to be an actor (every kids dream) programmer. Game designer, fbi agent. All of those because they sounded cool. But over the last few years my interest in science has peeked. As a kid I always loved space and all that goes a long with it. The idea of helping advance the human race or push us in a direction that leads us to other planets or galaxies has been a huge dream of mine lately. I've been looking into colleges to go too and 2 of them stuck out MIT And caltech The issue I'm having is I'm afraid I've been out of school to long and might have issues jumping into a topic / area of study like this. I took a few online college classes so far but online was not for me. I only passed 3 of them and dropped 3 of them .. I passed math with a low A. I've always been good at math. Not amazing but good. I was in AP math in high school. Anyway the questions I'm having. Is. What can I do to prepare myself ... I read books and watch tv shows about space but I still feel like I know absolutely nothing. What do I need to know before persueing this field. And is this field right for me. I love the idea of a job doing astrophysics but I'm afraid I might not handle the work load or it might be to hard. Even though math was easy and science too. In high school I didn't try hard so my grades were always average is that going to affect my career forever now?