what's your resting jaw position? at rest, teeth shouldn't touch, there should be a small gap, and your tongue is usually touching the upper palate, just behind

what's your resting jaw position? at rest, teeth shouldn't touch, there should be a small gap, and your tongue is usually touching the upper palate, just behind front teeth. Your resting breath-rate and heart-rate shouldn't be too high, relaxation and exercise will help (at any age!), try breathing deeply a few times, then exhale all the air, empty lungs and hold this for 20s and more