A bad hair can define you. I your hair makes you feel embarassed then there are lote of method to treat it. So exactly tell what the problem with you hair.
Well your hair can never be a definition of beauty. It comes from within, it comes from the kind of person you are. I am sure that you are an amazing person.
If you don’t feel confident about your hair you can definitely take care of them and consult a doctor if need be.