I wouldn't reduce your estrogen as there is (or should be) a reason your current dose was arrived at based on symptoms, quality of life and future health goals.
Sacrificing these to get rid of bleeding which there are multiple other ways to manage makes no sense.
However nobody needs to accept vaginal bleeding, whether menstrual or iatrogenic, at all unless they want to. Periods have been optional since about 1965!
I would discuss alternative progestogen options with your GP.
You could increase the micronised progesterone eg to 3 nightly however tolerability can become an issue at higher doses and it will always be the worst performer in terms of bleed control (although there are other reasons people like it vs synthetic progestins).
Alternatively you could consider a mirena IUS or an oral progestin such as desogestrel 150mcg or drospirenone (slynd) alongside your estrogen of choice.
These are much likelier to help you achieve amenorrhea.