During practice, eliminate 2 senses (sight and sound); rely on only the 3rd (feeling).
Spend part of each practice session with the eyes closed (it is advised to memorize what one wishes to work on) and completely eliminate any input from the ears by wearing earplugs and/or any sound blockage available, such as a padded headset. Enhancing "feel" over sight (the tendency to look into a mirror for any reason) and especially over sound (hearing) will connect the kinesthetic and rapid progress will surprise you.
The great Tomatis (the French discoverer of the connection between the ear frequencies and depression) says that "listening" and "hearing" are not synonymous.
Since we all are teachers, whether ultimately "our own teacher", teaching others privately or teaching the youth in a school setting such as Middle School, High School or College level, I will be gearing FixYourBrass to include teachers and performers. My posts will have various "topics" (Range, for example), with information for development and maintaining these categories as well as problems that may arise. The posts may be followed by my own "comments" and as to solutions to these problems watch for follow-up posts. So please add your own comments as to create a dialogue regarding said posts as well as any "personal problems" that I can help with. Looking forward to this exchange.