Help getting out of a creative/intellectual/social funk...

I’ve been at college for almost a full year, but I feel like I’m kind of stagnating intellectually; I originally wanted to major in physics, but I’m really not feeling passionate about it lately (or about any of my classes, really). I also feel as though I haven’t done anything creative in a while, as if I’ve been just taking up space, getting by, and missing out on a truly life-changing college experience.

Any suggestions for how I might seek some mind-opening experiences to raise my spirits? Thanks a lot!