pick the feature about yourself you like the most, and enhance that when you are doing your makeup. it could be your lips, your eyes, your cheekbones, your brows. whatever it is - make the most of it.
not sure what your best feature is? ask a friend. they will tell you. they look at you and are the best judge.
focusing on a feature is a good makeup technique as well. it ensures that your face is not overwhelmed with lots of makeup. instead, balance is achieved.
lastly, remember, there is beauty in everyone. one of the things we love most about beauty is that it has no set rules. there is not one "kind" of beautiful. so, everyday let your true beauty shine through.