To sort your Facebook posts by date, follow these steps:
Open the Facebook app or go to the Facebook website on your web browser.
Go to your profile page by clicking or tapping on your profile picture or name.
Scroll down to your post history.
Look for the "Sort" option, which is located on the right-hand side of the screen, just above your posts.
Click or tap on "Sort," and you'll see a menu with different sorting options.
Select "Sort by Date" from the list of options.
Your posts will now be sorted by date, with the most recent posts at the top.
If you want to go back to the default sorting option, you can go back to the "Sort" menu and select "Top" instead of "Sort by Date."
Note that this option is only available on your own profile, and not on the News Feed or other people's profiles.