@Adrian Grauer don't follow any ONE person's advice, pick and choose bits of knowledge. The fact that you're even thinking about this at 15 puts you years ahead of most people (and a lifetime ahead of many). As for college vs no college, it's really something that's up to you. If you have a specific goal that includes needing a college degree, then go for it. But as others have stated, don't go to college just to go and expect anything at the end (other than life altering debt). I didn't go to college, and I'm not doing too bad. Every job I've gotten in the last 15 years had a bachelor degree "requirement", funny how that works. That said, I'd probably have had more opportunities and better pay (at least initially) if I had an education, but it's hard to weigh that against losing 4 years of work experience and starting out in debt. If someone else if paying (parents, military, scholarships), then by all means go for it.
Some advise that I haven't seen mentioned (I didn't read all comments though), is getting yourself involved with a local REIA. Go to some meetings, talk to some people who are living it. Instead of getting a job flipping burgers for $7/hr maybe try to do some work for local real estate brokers, or other investors. Even if you do it for free, you'll likely earn more in education then some mundane part time job.
Finally, come up with a big goal, and some small goals that will get you close to the big goal. Then write down a PLAN to get to each small goal. A goal without a plan is just a wish. You have to have a plan. Even if you find out in 5 years that the plan wasn't perfect, and needs to be changed, having no plan will make you spin your wheels.
You have time on your side. The older you get the less risk you can take, so be bold (but not stupid!). Take educated risks, if you lose learn from it and go at it again.