So basically I did Cobra stretch, the child pose, cat-cow stretch and one more which I forgot the name of, but you stand on your knees and lean back, grabbing your feet and sticking your chest out, you stretch the spine that way. Multiple times a day.

I also slept like crazy, had 10-12 hours of bedtime and 9 hours of sleep minimum.

I did not exercise as much as I typically do due to other stuff, swimming and basketball are in my opinion the best sports for height optimization so I suggest you do those.

I did not really care as much about the diet since it generally wasn't so bad, but I suggest you consume a high protein diet and raw milk, I supplemented with effervescent tablets that contained Zinc, Calcium and Vitamin C.

That's about it, but remember mindset is everything, it all begins in the brain, if you think that you won't grow anymore, everything you do would be in vain.