My Library is greedy AF

https://preview.redd.it/tjm8sgsu5nce1.png?width=1666&format=png&auto=webp&s=fdd4567a16260a97a0a4749c4056cd1b135110ef This is over a quarter of my hard drive. I'm afraid to start deleting things willy nilly from the Library, but this is out of control. What can I do about this?