8. Realize Other People's Beauty Doesn't Take Away From Your Own
If you feel jealous and then immediately down on yourself when a gorgeous woman walks into a room, you need to understand that there isn't a finite amount of beauty in the world. Meaning, just because there's a knock-out in the room doesn't mean they took away some of your own pretty-points from your pile to compensate. 

You can totally appreciate someone else's beauty without questioning your own.