The more I grew up, the less I feel. Why ?

It's like I don't feel anything anymore compared to my childhood. Everything is flat, without relief. My intuition, my imagination... I feel nothing
When I was a child, the difference between two rooms in the same house could be very tangible, I could feel the atmosphere. Everything had a taste, a color.
Now, nothing.

Why ?

Could I regain this ?

I am 19M