Acceptance of our flaws and doing something about them are not mutually exclusive.
Acceptance of our flaws and shame are not the same thing.
Shame may or may not motivate you to do something about your flaws, but the cost is not worth the benefit.
Don't feel shame about your flaws, we all have them.
Even the worst sinner spends most of her time not sinning (paraphrasing Bhagavan Bhudda).
Present yourself naked in front of God, warts and all.
God loves you.
God loves your enemy.