There is no risk of recurrence. The glandular tissue of the breast is completely removed and cannot regenerate, just like fat cells removed by liposuction. HRT doesn't destroy your body, it simply changes it. You can destroy your body with an unhealthy lifestyle, but even that is temporary and fixable.
I think doing this on a forum with toxic trolls is a bad idea. Especially when you have detractors. In fact, they're not limited to the few people who write nasty things here. Some people from the Russian internet used to follow me here. But we don't see them here. They're busy treating baldness with tinfoil hats (true story).