As far as selecting a major course of study, making hasty decisions can be extremely costly. Get the basics out of the way as much as possible before locking yourself into a career that you may decide you don't like or won't be beneficial for you 5 years down the road. Do your research.

I wish I’d seen number 7 when I was still in school, myself. I did take some interesting classes, but a lot of the potential “Ooo, nifty” ones were sacrificed to getting out in four years, which I didn’t manage anyway. I could have lived without Japanese Culture Through Film, though. The prof thought good cinema ended in 1950 and silent films are REALLY boring without the pianist accompanying them.

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As for picking a subject, do whatever you like, but then spend some time figuring out how to make it work, whether that’s classes in other subjects, transferable skills from employment, or volunteering.

Living life to the fullest is the most important thing. That, and be yourself.

That’s using my inside voice though.

No one ever told me that college was for socialization, so by and large I didn’t. I had (have???) poor social skills, which didn’t become painfully aware until I was a working adult. College could have helped me greatly in this regard.