Concerning going to college:
I am in my mid 50's, so look at this with a bit of hindsight.
The only reason, this day and age, i can think of for going to college is social. It gives you a chance to meet people and selecting a school, or your path once in a school, can allow you to cut through the masses and meet folks that you can share interests with. Far from "deciding what you want to be when your grow up"; before going to college you should should look hard at yourself & figure our what types of people you share in common. This also tells you a lot about yourself. What types of people energize you?
There may very well be better ways of meeting those people, in fact, that is very likely. But, college is one option depending on you.
Other than that, there is NO reason for college that I can think of. If you need to discover yourself, or to expand your horizons... spend the money on travel instead. If there is a topic you like, there are better ways to learn it... shop around.
Myself, knowing myself as I do now, I would tend bar (or something) & save enough money to buy an abandoned farm WAY AWAY from the beaten path & homestead. This is now what I am doing. I'd also invest in a satt. dish so that I had access to the internet. I'd then pursue a simple life (homesteading actually is not simple), and spend my winters learning through the internet.
Most important book to read before any of this... Walden by Thoreau. I school has killed your desire to read... REKINDLE IT. It is your key to many, many things.
Or something like that, smile.
Hope this contributes,
flinter