Griffin, take this all with a grain or pillar of salt, but here's some suggestions socially/emotionally/career wise/etc. based on my experience
1)Make sure the school is a good fit not only academically, but to your personality-I come from a community of success and overachievers where the school you went to was like a bragging right. I chose to go to a larger school in DC based on prestige, not who I was. It was a mistake. I like driving and didn't have a car because having a car in DC proper is $$$$. I dressed like a metalhead at the time and everyone was either a preppy, or a very small group of hipsters who I wasn't cool enough for. My friends were ok and I have one really close friend who lives in NY now from those days, but none of my friends ever wanted to explore more than occasionally. I ended up doing not everything, but a lot alone. Visit the place and get a feel for it.
2)Don't Let Girls Ruin Your Experience-There were two girls in college I really liked. Both were a waste of my time (one was a Flyers fan, we watched a Flyers/Sens playoff game together so insert joke). Get to know lots of girls (or guys or both lolol whatever your preference is) talk to them, go on dates, but don't ever let them distract you from your mission. After thinking that my dating life was over after the Flyers girl, I met a really great girl in my 20s (we're still very good friends) and the reason we're not still together is because it was the wrong time back then. I also met a wonderful girl four years ago, and I'm finishing the battle damage of not raising a Cup with her.
3)It's not just about the grades-I was a very black and white person in those days. It was go to class, come back to dorm, watch hockey/WWF/play video games, and then do school work. That's all I did. I worked part time here and there but it was just a job not career. Get great not good at Excel (Pivots, Lookup, Logic), Power Point, and even something like R or SQL or Python. Those skills are very important and you should be able to use the school for it. Secure internships, join clubs, network.
4)Don't Waste Summers-Because my social and dating life stunk for most of college, I could always come home and the old gang would be in town and we'd work summer jobs like lifeguards, camp counselors, retail, and go to baseball games, concerts, and party hard. It was awesome and some of the best summers of my life, but career wise it put me in the passenger seat. If you're gonna have fun, at least do something that is progress.
5)If you're not feeling it, transfer ASAP-My biggest college regret is not transferring. DC wasn't a good match for me, at that point I needed to be in NY/CT but I "toughed it out" bad choice.
6)Stay up to date with connections-LinkedIn, Facebook..keep up with people and treat them with kindness, you never know when you may need a favor.
7)Stand up for yourself and don't be afraid to be disliked-Be good and kind to your family, close friends, but if anyone in school or even your old HS friends or g/f are being disrespectful, diffuse the situation immediately and speak up. It's better to be a $^&Q^ and respected because there will be people in the work world or even socially who will try and use a weakness down the line and exploit it to get what they want. Remember, at the end of the day years down the line, no one cares how many beers you drank or how cool your t-shirt is, it's all about being able to make good $ and be happy with your career.