Yea, you've pretty much got it already... just take a moment to look around you and question whether any of it would really happen. Just do it in your head - "Would I be eating a hamburger in real life? Hamburgers are things that you can eat, right? Right... but what about this cat... is it normal? Yes... it's my cat... I know it" .............etc.

Also do reality checks when anything slightly strange happens to you in real life, like it snowing, or bumping into someone in the street

bye

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