Its a poor idea to lie to yourself...

To lie to yourself, means living in denial. By not accepting or coming to terms with situations as they are, lying to yourself often seems easier than accepting the truth. But in reality it causes more harm to your wellbeing.  Eventually you end up believing your lies and find it hard to distinguish between reality and false truth. Whenever you consider that you might be lying to yourself , for whatever reason. Make reference to the Serenity prayer. Lying to yourself is toxic.

(quilligraphy.com)