Stranger insults????????????????

well i was shopping the other day in a beauty store ,to buy some new straightners
these 2 shop assistants walk up to me,
the one says why are you looking at those straightners isnt your hair damaged enough
then she was saying about the woman next to her that her hair used to be blonde too and her hair nealy broke off,i just stood there shocked and im very quiet and nervous i just agreed with her about my hair like a stupid loser, has anything like this ever happened to you? i feel so low at the moment and feel like im not good enough for nothing. people ignore me through-out my life because i have horrible wrinkled skin acne and damaged hair and im only 16 for goodness sake.