ITS Job Insight and Help

Hello! I just got back from MEPS for my physical and to choose my job, and swear in. I wanted regular IT but all that was available was ITS. I’m still a bit apprehensive about being on a submarine, but I was also told that I would get to rotate around but idk. Is anyone else in this field that could ease my mind? My goal is to get some transferable skills to use as a civilian.