As far as the teas go, I do fancy a cup of green with mint, but honestly, If you want to supress T, you should see an endocrinologist. I tried herbals decades ago, and the only reduction I got from it was one of disposable income, similarly, the only enhancement I got was was in debt load. I was on an herbal coctail* for almost two years, no body changes, not even a tingle. After filling the Rx I got from the endo my whole body responded after a few days. Like Cindy said: therapist, medically supervised HRT.
* no trans-related pun intended