What do I do next?

I probably am gonna sound like snoo or whoever right now, but idk I could use some advice. I'm a sophomore, and I really just don't feel like I have a place at UCLA. There aren't many clubs I'm interested in joining, and the like 7 I applied to I got all rejected. I learned the hard way that Greek Life isn't for me (still have flashbacks from rush and it not in a good way lmao). Classes are fine I guess, but I'm pretty unmotivated. And honestly, I don't really feel like I have found people here that I truly connect with and laugh with the way I used to. And career wise, I just feel like I am already behind, and I didn't get involved my freshmen year and I don't know what to do to develop myself career wise.

I guess if I'm uninterested in most things, and am the most insecure person ever in every department, and my mindset could use some work. I'm not saying that I'm not the source of a lot of my issues, because I'm sure I am, but I guess I'm posting here to see if anyone was ever in a similar situation, and what do I do to get out of it? I just at this point find myself enjoying life less every year I grow up lol. And I feel like I'm drowning at UCLA