1. If you love sports journalism than stick with it. It's a tough, competitive, and non-lucrative position but if that's what you love to do - give it a try. I've been in the lower end of it for some time - granted, no HS or college degree makes it a wee bit difficult to move up. However you can begin building your resume asap.
Try to find a local paper, maybe one that focuses on local colleges or high schools - one that is issued weekly would be a VERY good decision. Less stress, more time to learn how to WRITE instead of just going on instincts, you have more leeway, etc. You won't make really any money doing this, but if you can find a weekly paper that only requires an article or maybe two a week, a second job is doable. Also note the paper you write for doesn't always mean you're better/worse than other papers - you can read stuff from the ABJ or even the Plain Dealer, and I work with guys who routinely write better stuff than some of these higher end people.
The other way would be to start writing for a site like this, writing game recaps, previews, or opinionated columns.
All this to build your resume - some colleges could accept a portfolio for a scholarship and some can't - a buddy of mine got 20,000 dollars for an art scholarship (Now granted he's quite gifted, that is WAY out of the league to shoot for), so I'm guessing you could, but that depends on the school. So the resume would be for after getting a Journalism degree, you'd be able to show that you had articles published in a paper, and/or had articles "published" online. Save them all, put them into book format.
You said you talked with your parents. Now some people just can't afford it because of competition, not that many good spots, and now with the financial crisis who knows, but if you think you would love to pursue sports journalism - the idea that not only could someone get paid to do something they truly love, but THAT'S how their make a living - is practically a joke in my eyes.
2. What about sports medicine or a personal trainer? Most schools have Athletic Training as a major (I think...) so that's definitely an option.