Welcome to the forum, @LimpToeTheTimeless
Bone growth plates close in the late teens to early twenties, so it's doubtful you'll grow much taller, but you may start to bulk up in muscle. Remember to boost your absorption of vitamins and minerals needed to build muscle by eating a nutritionally dense diet and supplementing with essential vitamins and minerals, especially Thiamine B1, to counteract the malabsorption caused by Celiac Disease.
Keep us posted on your progress!
References:
The effects of endurance training and thiamine supplementation on anti-fatigue during exercise
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4241913/
A functional evaluation of anti-fatigue and exercise performance improvement following vitamin B complex supplementation in healthy humans, a randomized double-blind trial
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10542023/
Fermentation breaks down some of the gluten in wheat. Nowhere enough for a wheat dough to become gluten free, but the gluten may be significantly reduced. I think some pizzerias make the dough the day before and leave it overnight. The longer the microbes are acting on the flour, the better.