"Loving yourself isn't vanity, it is sanity."- Andre Gide.
You have just got to live yourself, it is a sane thing to do because, before you can love someone else, you must first love yourself.
The love you have for yourself will give you the strength to give love to someone else.
If it isn't in you, you cannot give it. The maize seed will germinate to be a maize and it will never be able to become a coconut no matter the chemical or science applied.
When you love yourself enough, you will be able to live someone else.
Most people consider self love as vanity because, the world will see you as having so much concern about yourself and less for others.
Really? Do you need to love yourself more and expect to be able to love someone else?
You can only give what you have and if love resides inside you, you will do well giving love to your world.