What's it like choosing between endocrine therapy options after mastectomy?

I have hormone-positive breast cancer and recently had a mastectomy. My doctor explained I have two main endocrine therapy options moving forward. One approach would put me into menopause to reduce estrogen levels further, while the other keeps me premenopausal and uses tamoxifen-based treatments. Both are meant to block hormones that could fuel cancer growth and help prevent recurrence. I'm trying to understand what these different paths might look like in real life. If you've been through similar treatment decisions after mastectomy, I'd really appreciate hearing about your experience. • What factors helped you decide between different endocrine therapy approaches? • What has your day-to-day experience been like with whichever option you chose?