Does anyone feel like their brain just doesn’t shut off?

My brain is constantly running at a thousand miles an hour. If I'm not learning, I have a meltdown. I'm studying for law school entry exams while doing a part-time BA in Psychology. I already have two degrees. I've just finished two diplomas in HR (funded by my workplace) and forensic psychology. I'm doing another diploma in immigration law. I became a certified nail tech because I got bored on summer break. I also work full-time. I'm always learning a language and falling down extensive Wikipedia rabbit holes. My brain just freaks out when I'm not learning something.