Weight gain post taper

Hello. I am three months off K,  with weight GAIN. I have gained about 20 lbs over taper and withdrawal. I have been trying since April of this year to fast, restrict eating, lower calories, all with no loss of weight. It’s like my body is holding on to this fat for dear life.

I’m sure it’s a stress response and maybe cortisol. I am trying all natural ways to reduce my weight. Looking for those who have experience- any tips as to

When the weight starts normalizing?

THANKS!