Your use of punctuation reminds people of when they’ve seen posts by 11-14 year olds. Do you not notice that adults in general don’t do that?

I expect if you’re unaware of something like that so immediately apparent to everyone in this thread that you may have other quirks and behaviours that strike people as childish.

If you sincerely want to change that you’re going to need to ask the frank opinion of someone who knows you in person…