Honestly it seems this is sorta your generation. My son went through this. His group met weekly on a common organization they were building on campus. This was his main friend group but most times outside the organization they did different things. This doesn’t make it bad. It is what it is.
Also college is not everyone’s best time. Parents tend to tell you that and they shouldn’t. It’s just a time segment in your life. Your the one that makes it what it is. If your busy with clubs and such and having a good time consider yourself lucky. Try to find people with the same interests. Many also are just busy studying like you. Since studying seems to be a theme in college just ask someone if they want to go study together. Tell them you don’t like studying alone. Study groups usually are all over colleges. Find one. Might have to go for a slice of pizza afterwards… Lol.