In this world, there is no guarantee that anyone else but yourself, will love you. If you don't love yourself, you're more likely to let others take advantage of you, use you, and step all over you. By loving yourself, you give yourself value, and know how important you are as a person. It's always necessary to love yourself, in order to be able to love anyone else. It's always best to love yourself no matter what, and strive for a better you.