I really messed up😐

Brooklyn

You know how you get a wild thought every once in a wild? Like “okay I love my hair but I’m gonna chop it off,” kinda thought? Ya, did it. Regret it.. it’s also 2 inches shorter than I wanted it and instead of below the shoulder it’s at the base of my neck. What tips do y’all have on growing hair? Specifically vitamins, I’ve tried them all a long time ago but nothing seems to work for me.. maybe I’m using the wrong ones.. PLEASE HELP!!!