I am 21 and I want to straight my hair but donât want to tell my mother about this as she will not allow me. I have curly hair but for my fresherâs party I want to flat my hair. Can anyone give me some ideas that how I can flat my hair without letting my mom know about this. She is going out this evening for half an hour I think. Do you think I will be able to flat my hair in that time? Which hair flat iron you think is the best?