Think of the times when you've looked your best. Imagine that picture of you smiling at you and waving at you and telling you that's who you are. Just get stuck at that picture. Let that picture pop up in front of you (as if you are hallucinating)
Proverbs 14:7-9 Leave the presence of a fool, or you will not discern knowledge. The wisdom of the sensible is to understand his way, but the foolishness of fools is deceit. Fools mock at sin, but among the upright there is good will.