You can be the most beautiful person in the world and everybody sees light and rainbows when they look at you, but if you yourself don't know it, all of that doesn't even matter. Every second that you spend on doubting your worth, every moment that you use to criticize yourself; is a second of your life wasted, is a moment of your life thrown away. It's not like you have forever, so don't waste any of your seconds, don't throw even one of your moments away.