makeup/skin problems

ok, so i have really dry skin and my skin doesn’t like all the makeup/chemicals on my face. currently i have some crabs on my face because i’m always scratching my forehead, but right now it is really bad looking. makeup won’t cover it, but if u put a lot on my face hurts. i just wear mascara to school and it feeling really really ugly, lots of people think i’m pretty but some people have such nice skin. then again mine isn’t as bad as other. i feel really ugly and i just need some advice of how i should take care of it or some confident boost😥🙂😰😭💞