View Yourself as a Great Person Who Has a Greater Yetzer Hara
He tells himself that this praise is a sign from Shamayim how great I truly am, especially because of my big Nisyonos. Despite his scary lusts and irrational jealousies and hot temper, he does not take this as proof that he has a low Neshama (which the Yetzer Hara would love that he do this!); rather he views himself: כָּל הַגָדוֹל מֵחַבֵרוֹ יִצְרוֹ גָדוֹל הֵימֶנוּ סוכה נב א a great person who has
a greater Yetzer Hara.
Now here comes a bomb. When you tell yourself how great you are, you are listening to your Yetzer Tov. And when you put yourself down, it's pure Ma'aseh Satan! And if you happen to be a person who doesn't have all those lusts and hot anger and jealousies, then you should tell yourself: I must be a pure soul, who is especially loved by Hashem!
Dovid HaMelech is the official: דוּגְמָה model and example and the: לֵב הָעָם heart of the entire nation (Rambam14) for all of us. For good reason he was Nichshal in such a disgusting Chet, to give hope to the worst people. (Of course: כָּל הָאוֹמֵר דָוִד חָטָא אֵינוֹ אֶלָא טוֹעֶה שבת נו א Dovid never did any sin whatsoever, and we don't really understand). There are people who came to this world to prove that they can operate in Avodas Hashem despite being involved in uncontrollable wicked habits. They are unusually precious to the Klal.