Can I ask why you came off estrogen? (no judgement here, I'm just trying to get a clearer picture)
If you really can't stand the strength of your sex drive, you might want to try a stronger anti-androgen, like cyproterone (aka Androcur, Cyprostat etc). About a month into starting on hormones (including the above) I was finally freed for the first time since the age of 9 from the awful burden of testostyranny, and it's been such a relief.
Don't take these things without medical support, though, as they can have a big impact on the body in general. Cyproterone, for example, can affect the liver, so regular blood checkups are recommended.
But it's also worth considering addressing your relationship with your sex drive and sexuality on a non-physical level, perhaps find a support group? It certainly sounds like there's scope for you feeling in a happier relationship with your sexuality, as part of your ongoing transgender journey.