Frankly, I do not see how a college student would have time to keep and properly train a GSD. Maybe you should wait until after you have your degree.
As a fairly recent college student, I think it's very possible for someone to have the time to keep and properly train a GSD while also a full time student.
I've had many friends who successfully raised, trained, and showed GSDs while in college. That said- it only works if the owner is willing to make that dog their life outside of classes. Definitely not the dog if you have parties at your house or apartment, love going out frequently and not coming home till bar close, don't have a steady income to pay for the pup, and aren't willing to sacrifice some social time with friends (or study time, depending on who you are lol). Dorm dogs they are not!
It is for sure a different way of life than the typical college student, but for some of us it's exponentially better.
OP sounds like they're thinking it through and asking some good questions. Hopefully they'll take the socialization tips offered, along with the reality that GSDs as a breed are intended to be more aloof, and decide whether they can make that commitment and if a GSD is actually what they want based on where they're at in life right now.
As an added bonus, if they get a pup they'll never have to worry about sleeping through an 8am again