Thats normal and it went away for me after about 3 months, when I say went away, I mean I wasnt as horny all the time plus I just got used to it.
My first 2 weeks of T I was horny constantly and having to relieve myself 3-5 times a day, and I felt the same way about wanting more then just my hand, and I wanted to ->-bleeped-<- anything, and I ended up doing stuff with my roommate who/was is ugly as hell just because I was so blind from the horny-ness (dont make my mistake, i still regret it, ew)