First off, before thinking about all of the potential problems that college COULD bring up, think about the good. Number one is that you guys have been together for 4 years now, so there’s obviously a pretty good connection going on. Number two is that while college could bring many problems, it could also bring an even better aspect to your relationship.
With that said, every summer when I return home, I notice how much my friends have changed since I had last seen them over winter break. College is a time where people mature, try new things, and grow into who they’re going to be for the rest of their lives. The same can’t be said about high school. You and your boyfriend will both go through changes as a person over the next few years, your interests may change, and who knows what else.
The bottom line is that you shouldn’t stress too much about it. Your relationship worked from the ages of 14-18 because you guys were similar in high school, and it’s now college. The basic question is going to be: will you and your boyfriend continue to be similar people as you go through changes? That’s the bottom line. Of course there are many other issues such as parties, being drunk, greek life, jealousy, etc, etc, etc- but all of those can be worked out between you guys. College life isn’t stressful, and I don’t know one college couple who have had problems because they had a “no-distance” relationship.
Basically, if it’s meant to be, you’ll stay together, and if not, it’s a change for the better because you’ll want someone who is similar to you anyways. So don’t stress! Just have fun and whatever happens happens.