I am fond of saying “a conversation never hurt anyone”. Talk to your doctor about these fears, on threads like these you read from all the people who are unhappy about the medicines. Far fewer people who are happy with them, take the time to write about it. What you read here is disproportionate to the number of women who experience harsh side effects. Also you can always decide to stop.
Here is a list of hormone therapy drugs and the quick version of hormone therapy for breast cancer from the Mayo Clinic website.
https://www.mayoclinic.org/diseases-conditions/breast-cancer/in-depth/breast-cancer/art-20045353
Does this help answer some of your questions? Do you have a list of questions for your doctor?