I don't know what I want out of life. What if I don't want anything from life? Also how can I figure out what I like and dislike? What do you mean by experiment?So you don't know what to do with your life. Forget about what you want to DO with life. Think about what you want OUT of life. What do you want? If you don't know this, it'll be a lot harder to think of the "Do" part.
The most important thing is to keep your mind open and be ready to take risks. Your immediate post-high school years are the prime time to experiment and figure out what you like and dislike, so don't stay cooped up in your room wondering how to live. Go out and actually live the life you imagine in your head. I say this because INFPs can get too caught up in daydreams (something I learned the hard way!).