I've talked before about gaining quite a bit of weight coming out of my most disordered eating. Half of that weight I really needed in order to be healthy, the other half was overachieving, but it disappeared quickly. Do you know why? A healthy active lifestyle and a positive mindset didn't support the higher weight. The higher weight was a big tangle of binges and fear and self-loathing. Once I calmed down, ditched the destructive habits, and became all about taking care of myself, my weight couldn't go anywhere but to "healthy, happy fit person" because that's how I was living and thinking.
Put the healthy, happy, fit person behaviors first and the weight takes care of itself. Put the weight first and you will destroy yourself trying to influence the numbers.