Lol, sure! I'm assuming you start soon, but yeah it's crazy but amazing, and fun at many times yet there are downsides.
Basically, I'm 21 in my third year of college (Junior, finishing in May) and it's relatively easy/difficult.
Freshman year is easy. I maintained a 4.0 GPA the entire semester, got on the Dean's List, and you meet great people!
Sophmore is where you need to really recollect on yourself, you need to push and pressure yourself in your courses and realize what exactly you want to do in your life.
Junior is where it's going to hit the breaking point, and your talents and how you can endure will be tested.
Senior, of course, is the most difficult and irritating, my older friends tell me.
Nonetheless, have fun, party, but stay on top of your studies, become popular, etc, do whatever. Just get your education and you're through :)