Scared. Is College that hard?

I was the same way in high school. I NEVER studied, very rarely took notes, and somehow managed to graduate in the top 10% of my class. When I got to college, I struggled at first, but learned pretty quickly that I had to change my habits. You'll learn that it is absolutely essential to take notes and study daily in order to do well. My first semester GPA was something horrible like a 2.2 but with a lot of hard work and studying, I've been able to bring it up to about a 3.8 now. (I'm just finishing my sophomore year) By the way, I'm a psychology major and I go to a school that is probably more similar to Drexel than Rensselaer.