I wish I was a woman so bad. It's fucking eating me up inside.

Hey, I'm a trans woman, about 3 years on HRT I've been worried about my erectile function. I was fine when I was having sex regularly but now that I'm not and I don't jerk off and have no desire to my shit isn't working properly. I've tried viagra, and that was working prior to when my shit really kicked off, but now nothing. I was wondering if y'all had any advice on acquiring T gel for the purposes of retaining function and what the dosage would be. Otherwise, I fear I'll have to get SRS to continue doing penitrative anyway since my dick will just be in the way if I commit to using strap.