First of all, your age can be completely corrected. Although the best age for orthodontics is 9- 13-year-old teenagers, in theory, as long as the teeth are healthy, they can be corrected regardless of their age, but the correction time will be slightly longer than that of minors. However, considering that you have made a correction before, the correction time may be shortened accordingly, but you must stick to it after correction. I hope I can help you.