You may want to try dry needing (not accupuncture, but dry needling, just get a good specialist who is a pro at identifying tight muscles and knows the trigger points to release them). If your root cause of styloid elongation is body trying to stabilize the head/neck due to spasmed/stiff muscles and overall muscle imbalance, this might help to release the tension.
Details and how it works: Dry needling - Physiopedia
P.S. Always do a good muscle massage after excercising, to let them recover and relax, otherwise they might be unable to rid of all the lactic acids, get enough oxygen etc.
Update: something else - don’t read, don’t use phone etc in bed, as that keeps muscles very out of balance, no matter if you lie on your stomach, back or side