> Also didn't understand how I wasn't negativity affected like him.

It's very possible that even though everyone's brains are built from the same template, each brain is tuned uniquely, leading to different processing of the same stimuli (and conversely, perhaps similar processing of different stimuli) in various cases. The thought experiment that comes to mind is the possibility of 2 persons looking at objects of a particular colour, and agreeing for example that the colour is "red", but internally their brains are actually receiving different signals; it's the common language which makes it possible to share similar experiences.