[Orthodontics] Ive been editing since my freshman year of middle school

Hello :-) I started orthodontist when I was in the first year of middle school, and I have been doing it for about 5 years, and my teeth are coming back ㅠㅠ The dentist I went to for orthodontics disappeared in the middle. I lost it and had it taken out by another dentist, but the lower teeth are returning to their original place. I corrected it, but my mouth didnt get any better, and I did it at 3.6 million won at the time.