I have a overyet. If align my morals my incisiors dont touch and my tip of the tongue is not on the incisive papilla. But if I aligh my incisors my morals dont touch. How should I keep the posture?
Maybe move your jaw to a comfortable position where your tongue can properly touch the whole roof of your mouth. I also had an overjet (now I have a normal bite), what helped me is to move my mandible forward so I can rest all of my tongue to my palate. Your teeth will align, but don't be alarmed if it started getting crooked at first, mine did before it straightened. Also I was 16 when I first started practicing proper oral posture, I'm turning 18 now, so the whole process was faster for me.