You should be good on both points.
T increases bone size, mass, and strength. Since you got on AA before major changes, you should be good on that (and if you get on E soon, your hips will be very good)
T also affects the Adam's apple (and voice). The longer one is on T, the deeper/throatier it is (that's why young men still have a kinda high voice, compared to older men). Since you caught it *just* as it was cracking...you should be good there, too. I don't think anything helps to feminize the voice, though...women keep their voicebox as-issued, but with more volume than a child's. (So, you in essence
stopped the masculinization of your voice)
Congrats, btw. Must be wonderful to do this at your age!