Sorry to hear the dreaded day has arrived.
I can only speak from my own experience. I had a bilateral mastectomy two weeks ago, although lumpectomy was on the table too. I had dcis, but in both breasts. I felt that there would be issues with margins with lumpectomy and didn't want to worry about that. I am healing well so far. I had never had surgery before, so it was a full on process. But I don't regret it at all.
Our bodies change as we age anyway, this is just more dramatic. I lost my nipples too. I just had a chat with my husband about my non-nipples. We are already working on loving my new body together and I still have some bandages.
Take care,
Jen