I just got hired to work in a tier 3 datacenter. I don't even...

They are training me but I don't know anything yet. Anyone here with some wisdom they are willing to impart? Before I started several weeks ago I was only vaguely aware of what a server was. I am not totally computer illiterate, I know enough to solve most pc problems on my own but at this point I don't know what I don't know. Any help/anecdotes/tips/ffffuuuuu's are appreciated.