First of all, I just want you to know that it's okay.
Don't let anyone tell you that it's not okay to not know what you want, because screw them it is your life and your choices. Don't forget that.
I know that you're probably thinking "my indecisiveness is hurting people", well good for you. At least you care enough to observe that.
That guy that you really like but aren't sure if you want to dive into with will be okay until you get your shit together. If he isn't, then he's really not worth a second thought.
What I really want you to know is that, while your'e getting your shit together and deciding what you want, you need to live your life in the moment. Stop stressing over tomorrow, think about now. Go to the party, kiss the cute boy, get the tattoo, buy the shoes. Don't sell your life short.
It will be okay. You probably will pass college, get the job, get married, have babies. That's fantastic, but if you don't have it all figured out right now, you'll still make it. Just don't forget today, because your happiness now is just as important as it is in 10 years, and vice versa.
So kill today, tomorrow, next week, year, and 10 years from now. Just do what makes you happy in the moment. That's ultimately what we all want.