Well, they haven't knocked me off line yet, so,....
Girolamo, your 'circular argument' is not circular. The answer to your second half contains a reflexive verb which does not and cannot complete the circularity.
What you have shown, instead, with that example as well as with your claim that I am delusional, is simply that you are ignorant of the Person I know as well as strongly hoping He does not even exist.
God does exist. I do know Him. He is in control of my life.