Everybody should be using a password manager to generate unique passwords for all their accounts.
Speaking from experience...don't...especially if you have a mix of Windows and Apple devices.
On the Windows side, we had a computer that corrupted Windows and had to have it reinstalled. Upon reinstallation, the generated passwords...which only the "security program" knew, ceased to work.
Additionally, we have had numerous issues with the generated passwords transitioning from OSX to Windows 11.
IF you have a poor memory, remember ONE "basic" password and then use an identifier of the website you are accessing as either a prefix or a suffix. For instance... Make your "basic" password something like "Six&3/8ths" or something similar that you CAN remember that is a mixture of upper and lower case, numbers and symbols.
Then, let 's say, you are logging onto an account on www.example.com. You take the first 3 or 4 letters of the website (your call, but be consistent) and add it to the "basic" password, either before or after (again, I suggest you be consistent). In this case you might come up with - examSix&3/8ths.
This type of password will drive a password guessing program crazy.