I, however, have no such qualms, mwahaha!
1) Then don't wear makeup. Whether other people wear it and how much of it is none of your business.
2) A girl does not choose her outfit for your benefit. It's not a cry for your attention, it's not implicit permission for you to stare. Accept that and deny what entitlement you feel you have (hint: you have none) and you'll fare better.
3) To paraphrase the Buddha: get over yourself. Your self is getting in your way of emphasising, understanding and interacting with humanity. You really ought to deny yourself and look at other viewpoints without simplistic preconceived notions and with a principle of charity.