The way hormone balances work.. You body is a glass, full to the very top.. With clear water... The -very- top, so that it looks like it is above the edge of the glass (surface tension)... That is your T level.
You want to add Estrogen, a green dye (example) to your body, but when you pour it in, no matter how slowly, it runs over the sides, onto the table, and none of it gets into your body...
What to do... What to do...
You have to reduce the T in your body.. Reduce the clear, to make room for the green.. So you go on Anti androgens... Spiro, or Androcur, whatever your Endo recommends...
After some months, your T level lowers (no set amount), enough , to start adding E... Add in a little green E.. The color begins to change, just a pale green at first.. Reduce the T a little more, making more room for E... More green... The water becomes a darker green, you begin to feel it, feel better...
Reduce more T, add more E.. It's a balancing act... You cannot hope to make room for the E without reducing the T, which is fighting the E.. That is why you are still getting your erections,why they are coming back.. Your body is fighting the E by increasing the T output.
The E that you have added has been working, to a point.. That's why your chest is starting to change., why your hair and skin is getting softer... But only to a point.. You still have to knock down the T level .. Your Endo will know how much.
Reduce the T, add the E.. It's a balance. You can't do one without the other. After a while, the glass will be a deep shade of green (estrogen). Even if you stopped at that point, you will never get back to totally clear again. You will always have some residual green(estrogen) left in your system.