You're a very beautiful girl. God gives you this beauty (Both Inner & Outer). So you need not to think that your family accept you and you too accept yourself with these birth mark or spots. Indeed these spots increase your beauty. Just think about moon.... There are lot of spots in it but still everyone likes moon.
You're almost ditto copy of your sister, and soon you will be a famous girl on steemit(Don't forget your lovely supporters who loves you once you get famous). Keep posting and enjoy the beauty of life with your own thoughts. Keep smiling and stay blessed @gerel!