Hair tips!

My hair just does not grow! I want long hair but it grows maybe one inch per year (or so it seems). I get split ends super easily too. I rarely use heat on my hair but the second I do it once... Split ends. Please say someone has some tips! Any shampoo, conditioner, or product ideas? Or vitamins for hair growth that have worked for you? Or what is faster for hair growth, should I be getting my hair cut more often to get rid of unhealthy hair or not cut my hair as often for maximum growth?