Good decision. Stay away from that chiro. No chiro can reliably set up a treatment plan like that one tried to do.

As you said, the twist the head and pop the neck treatment is too forceful.

Do you sleep on your side ?

Some gentler treatments with you following that with disciplined sleep and rest posture (neck as straight as possible) will be much better. No chiro treatment will work if one does not follow with good neck posture discipline, too. It takes many weeks or even months of discipline while sleeping to allow the ligaments to strengthen and tighten to hold proper C-1 position.