Selfishness is also different from self-love. Self-love means you love yourself enough to appreciate loving another person too. It means because you love yourself so much, you understand how you need to love another person, without focusing attention on yourself alone. To love is to give. To be selfish is to want everything to yourself without the ability of giving.

People don't really know the difference between self-love and selfishness, Loving yourself is when you create positive thoughts about yourself and those positive thoughts are also good for other people.
While Being selfish is when you create negative thoughts, they are good for yourself and bad for other people
No one can make us feel happy and loved unless we create the space for it inside by practicing self-love.