"Accept yourself for who you are." is kinda mainstream to hear but why not change it to "Accept and appreciate yourself more." Putting make up on your face doesn't mean you're not feeling contented of what you have but instead it implies that you are appreciating your beauty. Make up can make you feel more confident about yourself. there's nothing wrong about putting colors on the face as long as it isn't too much and make sure you are wearing it in the right time and place.