Improve looks and bonemass

[laced0001]

Does anyone know what I can do about my recessed chin with an orthodontist? It's free in my country—I just need a valid medical reason to get it covered. I have an overbite and a little bit of a crossbite. Do you guys know what I can do to fix this, either through natural methods or through an orthodontist?

Im an later bloomer 15 years old and how to gain bonemass