Struggling with Tamoxifen side effects

I'm having my first oncologist appointment on 17 Jan. I was told that most likely I have to take Tamoxifen. I am not keen because of the rare but increased risk of womb cancer is a known side effect of taking tamoxifen and a high chance of bringing in menopause. But I feel I have no other choice.

There seem to be better drug Estriol and Frenretinide but compare to Tamoxifen they are very new and not being use for breast cancer hormonal therapy.

I wish I have the choice to take them instead!!!! :(

Tamoxifen seem to be better for those who already had their menopause?

SOME INFORMATION ON FENRENTINIDE AND SIDE EFFECTS OF TAMOXIFEN BOTH IN THE SHORT AND LONG RUN.

 http://clincancerres.aacrjournals.org/content/9/5/1877

 Cyclin D1 Overexpression Sensitizes Breast Cancer Cells to Fenretinide 

and on Tamoxifen side effect   http://all-natural.com/tamox.html