Mewing isn't working for me—I'm probably too old for it.

However, fixing my chewing and swallowing techniques has given me very hollow cheeks, and nose breathing has generally helped reduce the "mouth breather" look.

My main issues are my long, crooked nose, downturned eyes, and elongated face. These are all symptoms of a downswung face. I think I have decent forward growth, but it has developed downward due to poor habits. When I was younger, I had minimal eyelid exposure and a somewhat compact face with a straight nose, but during puberty, I became a severe mouth breather. I was also heavily involved in sports, so I did little to no nose breathing. Recently, I've started ensuring my teeth are touching, as Mike Mew has suggested. He believes the tongue is for expansion, and teeth touching helps with the upswing, but this could take a long time to show results—assuming it works for me at all.

As a last resort, I'm considering chewing tough gum, as it's known to accelerate the upswing. I've seen many people make significant progress through chewing alone, with some even giving up on mewing and still seeing great results. Could this help me?