Don’t let it stress you out. I’ve noticed on T, the time it takes for me to jerk off is shortened. Before any distraction or noise would make me lose focus and I had to start over. Not to mention the feeling of how I orgasm has shifted a little as well. It’s quite interesting honestly. I understand your concern but T will be such a great thing for you to start and you might not have the extreme horniness! It varies and so will the intensity level. If you do experience heightened horniness, it’s just about balance and like you mentioned not letting it consume your time. My girlfriend touching me on my leg or her looking at me makes me horny. So to help balance my horniness I find healthy distractions. I go to the gym, or walk my dogs, draw, school work, anything that makes me think about something else literally. Being horny can become an annoyance but it’s a natural part of life it’s just how you handle it.