It’s not entirely true that: If you don’t Love yourself, you can’t be Loved.
You absolutely can be Loved and still not Love yourself.
It’s just that eventually people get tired of Giving to an unwilling recipient, thus they leave.
The only and most effective way to overcome this tragedy is to look at yourself in the mirror and honestly, genuinely be able to say these three words to yourself:
I Love You.
Listen to Three Words written by Joe Palmer, featuring Keith Leon.