I have been newly diagnosed with breast cancer.  Suggested treatment is 16 weeks chemotherapy and the 6 weeks radiotherapy and the tamoxifen for 5 years.

After all this there is no guarantee that the treatment will be successful or that the cancer won't spread as a result of treatment.  

Considering the side effects of treatment and quality of life, is it not better for me to accept what is and and live the best of my life and let it take it's course.

Looking for voices of reason please. Thank you.