HELP WITH HAIR AND BEAUTY?

My hair is completely ruined because of the straitening tongs. I hate my skin insnt hat good at the moment either. I'm fourteen.
So, i need tips so my hair recovers and grows quicker too.
I really need nice hair , mine just looks horrible!! i use conditioner only on the ends and a nice shampoo already
i cant stop straitening it because i dont like it curly so ways of treating it without stopping that-
HELP HELP HELP. PLEASE ANSWER. I NEED HELP