A very common concern in facial development is asymmetry.

I am 20 years old, and personally have facial asymmetries that have a very noticeable effect in photographs, but sometimes also a noticeable effect in my jaw's health when chewing hard foods (slight clicking on right TMJ).

I can recall photographs from years prior in which my face consistently looked as if it is weaker, less defined, and more "droopy" on the right side than the other. The affected side has a negative canthal tilt, weaker masseters, and generally less jaw and cheekbone definition. I did have orthodontic treatment, which can cause (or worsen) asymmetries in the face, but I do remember having cavities on the RIGHT side of my mouth, causing me to form the habit of almost exclusively chewing on the LEFT side of my mouth instead for years to come. As a result, the left side that I have chewed on just looks normal compared to the right. I have considered nerve weakness as a potential issue, though I have never noticed such a symptom and instead believe it to be habit. As it stands, my mandible causes a midline discrepancy by shifting to the "droopy" side more than it aligns with the middle of my face. In order to correct the appearance of an uneven jaw, I slightly move my jaw to the left side, which feels more natural for my jaw but not my teeth. That is how my teeth seem to effectively line up. Here is a drawing exactly representing my condition:

Now my question lies in how to improve or correct my habits to exactly pinpoint the issue.

Should I take up chewing only on the droopier right side of my face to build the masseters (even if my jaw shifts towards that side) to try to even out everything?

Should I be mewing/hard mewing on one side? Which side?

Should I try to force my jaw (away from the side my teeth cause it to gravitate to) to the middle of my face?''

Should I try to even out my jaw (move to the left) while still chewing on the right?

etc.

Again, I am 20, so I can only expect reasonable change within a reasonable time frame. However, that is why I feel it is incredibly important to know precisely what it is to do when attempting to correct a time-sensitive issue like this. I understand many on here have similar symptoms to some degree, and many people who have Bell's palsy or some similar affliction have very similar symptoms and might be looking for the answer to their problems as well. If you have anything to advise, please do so.