Best way(s) to prepare for 35T AIT MOS-T?

I am currently in my reenlistment window and looking to reclass to 35T from 19D. Currently waiting on S2 to submit my SF-86 for my interim TS which I would assume won't take too long as I already possess a Secret/SCI. After that, I'll be waiting on retention to get me a date from HRC. But between now and my PCS date, what would be recommended study material? I've already studied for A+, Net+, and Sec+ via Skillport; although, I have not taken any exams to get my certs yet. Other than those courses/ certs, what else should I familiarize myself with?

Also what is it like being an MOS-T, and how is 35T AIT structured?