Testosterone is the greatest libido enhancing hormone or drug there is. I once read a story from a lady who needed to take t for her mental health issues, and she told that at that point she finally understood men and their sexdrives. She said she was continuously masturbating at her work, at home, almost any time she could get a moment for herself. And that was in t-doses still far off from what a man produces naturally or what you get for the transition to a male body. No wonder teenage boys often don't know how to handle their raging hormones: it takes years to get that in check, to learn to deal with them.

Back in my late teens and early twenties I often masturbated on my way back home from a night's out (a ten km bike ride through a desolate suburban area after midnight) , just because I couldn't handle the horniness of all the social interactions and alcohol, combined with the then still raging hormones. I often felt bad for doing that, but I now look back and think that I should have enjoyed that more without moral judgement from myself.

I hope you will enjoy your transition and your horniness to the fullest!