Self-acceptance is really important. As someone who was bullied very badly as a child I’ll be the first to praise loving yourself even when others don’t. Self-acceptance isn’t very controversial, nor should it be, but it has its down falls when its taken too far. And I’m not talking about narcissism. I’m talking about when self-acceptance gets in your way of progress.
You should never be 100% satisfied with yourself. It’s dangerous, because it means that you don’t try to improve yourself. That doesn’t mean that you shouldn’t be happy with yourself. You can accept yourself as being the beautiful work in progress you are. In fact, that’s what you should do.