Why I'm not an Atheist and believe in what I believe.

[Mystic]

That's not good enough. Intuitions can often be wrong.

What would be good enough in your view?

Suppose God did miracles in the sky like writing I exist. How would we know he is Good or Great or Benevolent? Just because he tells us, he could be lying.

Or would God not give us knowledge of himself but put in some philosophical proof?

Or would he make it in science so that only those of the generation of scientists discovering why there must be a creator can know of him?

Yes some intuitions can be wrong, but it doesn't mean we cannot know anything intuitively.

Even if this was a unique case, it doesn't disprove it, because knowledge of God can be a different kind than other intuitions we have.