[shepherdjerred]

I think those two can ironically often go hand-in-hand.

You over value your self-importance which gives you ego/arrogance. Yet at the same time that self-importance with self-criticism leads to low self-esteem.

I think this is something that I often demonstrate. I feel the need to prove that I'm smart (ego), and I have very high standards for myself (low self-esteem, but it's getting better).

I'm not necessarily saying this is you, just that those two traits aren't mutually exclusive.