I developed a trick years ago to keep track of which day of the week is which date on the calendar. The trick is to remember which day of the week is a multiple of seven.
Or, equivalently, which day of the week was the last day of the previous month.
For example this month, May 2023, is a Sunday month, since May 7th, 14th, 21st and 28th all fall on a Sunday. From there it is easy to get the exact date of any other day in the month.
For most practical purposes I only need to remember a few months out. So next month will be a Wednesday month, July a Friday month and August a Monday month.
After any given month has passed, I promptly forget about it, and focus on the next few months ahead. It’s a simple trick, but it makes a lot of things easier. And it sure beats needing to look at my phone all the time to check the date.