Can anyone help please? (urgent)

I am diagnosed with a Breast Cancer stage IV with metastasss to bones. Tumour is hormonal. Doctors protocol : Tamoxifen for breast, and radiotherapy and bishopsphohates for bones. If it doesn't work in 3 weeks, they will offer chemo. I checked internet and found some info on dangers of Tamoxifen (in 2 year time liver ,uterine cancers) Did anyone of you hear anything on this drugs? Also I am extremley positive about alternative way. There are so many options, but in my advanced situations, I am confused which one would be better for me. Please any advice or eperience would be much appreciated!
Thank you very much
Anna Tweet