It's often better to know I suck than to know I'm doing good. The reason why it's better is the natural world demands refinement for something to work well. Whether it's a tiger catching its prey or a human playing the violin, nothing arrives perfect. Thus, I know I will need to adjust and make improvements. If somehow I'm doing everything right and everyone tells me I'm doing right, then I must be wary. Such perfection only exists in a vacuum or a bubble.
I feel good when I'm able to revisit a similar situation later on and respond differently -- in a kinder, more effective manner. But if I think I'm always right and others are wrong, then I won't even bother to do better. That's mental stagnation and certainly not a move made by a genius of love.