Jordan,
Good for you! It's nice to see someone so eager at your age.
I don't know of a state that requires a college degree in order to get a real estate license, but I can say this (all based on personal experience) if you have a college degree you'll be better off. The degree is actually in business administration with a concentration on real estate. Fewer than 1500 people across the nation get this degree each year, and there are positions out there that require it, but being a real estate agent isn't one of them.
I've been licensed for over 20 years, and am now back in college at the same time I am working real estate. I'm actually working towards my Masters degree in business administration with a concentration on real estate from the University of California at San Bernardino. The best college in the nation to attend is San Diego University, but they're a little far away from me, and are expensive. $$.
To cut the cost of the degree, I recommend starting at at Junior College. One that has agreements with a local university to accept their students credits. I did this, and went to college for 2 years and it cost me NOTHING!! I got grants which paid for it all! Even if grants didn't pay for it all, it's cheaper for those two years.
NEVER let anyone stop you from getting a college education. Even if you don't use the degree you majored in, it's very helpful in finding employment should you need to in a down market like what we saw from 2008 to 2013.
In order to get your real estate license, you can order classes online. I wouldn't sign up for them until you're about 17 1/2. Most states won't let you get the license until you are 18 as you need the capacity to contract. In California 3 classes are needed to get your license. Since you are young and in school, you'll probably do better than most people who have been out of school for some time. You're used to studying.
In addition to all of this, learn where ever you can. If a local meetup group has a guest speaker - go. IF someone is wiling to mentor you, let them. Listen to the podcasts and webinars here. Every bit of education is gold!
Wishing you nothing but the best!
Don Alder-LaRue
Real Estate Agent in California, CalDRE#01244398