Here is what you do.
Figure a daily amount of calories, however, build into your program, some "flex" calories, that you can use, or not use, it's up to you! Base this on a weekly count.
The flex cals, do NOT roll over, from week to week.
Available if you need it, does not need to be used, if you do not need it.
Weight Watchers does that for us!
WW teaches us how to balance, good days, bad days, holidays, and how to handle, the "whoops"!
As far as hormones and ovaries, I had a complete hysterectomy, 23 years ago, at 32. Great! Turned 52, having personal summers "AGAIN".
Doc, says, yup, normal! *rolls eyes*
Life is life! *deep sigh*
We have to take what we have and figure out how to work with it.