I dont know if I look.. ' right ' ..?

so, some people tell me I'm pretty and all that but then some people call me ugly.. I wear makeup for a confidence booster, I weigh 103 - 105 pounds, I'm 12 .. I have pimples but not that manyy.. I have blonde hair.. but sometimes I dont feel right my skin.. I really do not.. I dont know what to do to feel right in my own skin.. I feel fat.. I feel disghusting cause I have pimples.. I just dont feel right in my skin at all .. anyy helpp?./: