We mostly say that self love is most important and we should love ourselves first before loving other.
Do you know what's exactly self love is about? If no! Than how can you gonna love yourself? Everyone have different opinion about self love but I'm gonna talk about mine.
People often say self love means you've to believe that you're beautiful, talented, appreciable and so on as you're and you should stay as you're. No! It's not like that!
Self love means accept yourself as you are. But in order to accept yourself you have to accept your flaws as your flaws, your weakness as your weakness, your mistakes as your mistakes and your perfection as your perfection etc. After all these things it's called self love.
Self love means taking care of yourself and your emotions. It means priorities yourself over others and through self love you learn that you have to change for your better self but not for others.
Self love is most important for everyone's mental and physical health. It keeps you away from depression, anxiety and social judgement.
Once you'll realise what's self love is and how much its important for you than you surely love yourself in its proper way.
I'm not saying self love is exactly like this but I'm saying how I feel it. Feel free to share your opinion.