The problem with "acting old" is you can't help yourself.
I'll be 77 next month.
Even when you catch yourself doing it, and you tell yourself; "Stop doing that, you're acting like an old fart again.", you keep doing it. The problem is hardware, not software.
You can change how you act and speak, and edit what you write, but you can't change how you think. Unfortunately, that is out of one's control. Its a bitter realization I keep catching myself running up against more and more often these days.
And believe me, some day you'll find that out for yourself.