I lost 5 stone over a year which included an awful bereavement. Lost half a stone a month for the first 6 then it took ages to lose the last 2 (and stalled a bit due to said bereavement).
Regained a stone when I went back to 'normal' but then hovered there for 5 years or so. Peri menopause, covid and stress has seen me regain 2.5 stone since jan and I am miserable tbh.
I used my fitness pal and didn't have treat days except on birthdays. I'd eat what I wanted within my allowance. I very very rarely went over it even by a little so consistency was the key.