Anyone know anything about 25B, Information Technology Specialist? What do they do (my friend told me I’ll be in signal corps)?

I see, this make sense, thank you! Could you elaborate on 'interesting' though? My AIT is longer than most I know besides those at DLI...but I'm a bit concerned since I have zero experience in coding/programming.

First off, I never served as a 25B so I can't speak specifically to your AIT. I trained at Ft Gordon in 1981 as a (then) 35K Avionic Mechanic. My AIT was 14 weeks.
I don't know how it is now but in 1981 Fort Gordon was an "open post" which means civilians had free access. There is a huge field in the middle of the post called Barton Field and we were warned never to cross it at night. The problem was that the PX and bowling alley were on the other side of that field from my barracks. I ignored the warning.
One night, when crossing Barton Field after bowling, I was mugged at gunpoint and robbed of about $30 -- an expensive lesson. It also cost me one week of extra training and a long lecture from my 1st Sgt about the foolishness of thinking I was bulletproof. As I said... it was interesting.
The post itself is lovely -- especially if you like golf.
If I learned anything at Fort Gordon, I learned to listen to the NCO's. I would advise you to do the same.