Good luck, I remember those 'lean' days fondly, to be honest I'd rather have nothing and no money than this mortgage, truck load of student debt from round 1, and 'life' expenses ... and still no money. I kind of miss the cracker jack box apartment my wife and I had when we were dating. Remember that you paid for your seat in the class, skipping out or not doing your homework is like paying to go to the movies, getting popcorn and then dumping it on the floor and leaving the theater; it doesn't make any sense.
There will be a LOT you're not interested in, especially once you find a major the stuff not in your major feels pointless. I can honestly say that even my most hated undergrad classes provided at least some degree of benefit to me later in life.
The point of college is to do several things, 1) learn, 2) have fun 3) grow up. The third one just kind of happens whether you like it or not, if you're lucky. The first one you have to make a goal of. The second, try not to let it get in the way of 1 and 3.
You're lucky, you can have an orgy these days, between the condom, morning after pill, and birth control pill you literally can get away with it. So party on. In my day an orgy was $30 in condoms.