The real advice is to use a password manager to generate random passwords and store them for you, so no two passwords are the same, and the only password you need to remember is the one to unlock the password manager
I use keePass as it’s open source and available on all operating systems. Also you can move the camel case in your head to make it keepAss.
The idea is to change your passwords on other sites if they shared the same password (which is why you shouldn’t do this).
The real advice is to use a password manager to generate random passwords and store them for you, so no two passwords are the same, and the only password you need to remember is the one to unlock the password manager
I use keePass as it’s open source and available on all operating systems. Also you can move the camel case in your head to make it keepAss.