I wonder if anyone here has a good mental model of a calendar? I find I keep getting dates wrong when I book stuff. I recently booked a flight on the wrong dat

I wonder if anyone here has a good mental model of a calendar? I find I keep getting dates wrong when I book stuff. I recently booked a flight on the wrong date on Google Flights and booked a train ticket on the wrong date in Europe. Part of it is due to poorly designed UIs on mobile. Then there’s just me not having a good sense of today’s date and day of week (I often don’t know what day of week it is). So unless I really slow down and double check, I keep making mistakes when it comes to dates. I wonder if I just have a poor mental model of time and dates, or maybe I’m just not super aware.