I’m not sure how to write this in the sensitive way that it should be delivered, so I’m really sorry about that, but have you ever thought about going to therapy?
The reason I bring it up is because I used to be like that too, and it was absolutely fine with me until some shit happened in my life that my usual coping mechanisms couldn’t deal with and I went to therapy for help.
Entirely coincidentally, (or not?) we got onto the topic of emotional awareness and expression and eventually we worked out that I had trouble understanding my emotions due to a neurological disorder, but also, that I had been suppressing my emotions because as a kid I’d basically been taught that people react negatively towards my displays of emotion.
Just a thought that maybe it could help you if you were interested.
As a kid I liked to chew random stuff, (and tbh as an adult too, but I control myself by chewing socially acceptable stuff!) and I once chewed on some fancy curtains were pretty big and covered a big bay window, and my parents had to replace them. I don’t know how much they were but it couldn’t have been cheap.