Can a bent back be corrected with Chuna therapy?

When I was young, my upper back and lower back were slightly hunched, and my shoulders were rounded, so honestly, even I find my posture unattractive. I also seem to lack confidence. I tried to improve it by attending yoga for a while and doing strength training, but there was no significant change. Is it possible to correct this with chiropractic therapy? I am also curious whether chiropractic treatment is covered by insurance or personal injury insurance. I want to have a posture that looks confident too.