Make your password very long and impossible to remember without a password manager. Keep the password in a very difficult to use or annoying password manager,

Make your password very long and impossible to remember without a password manager. Keep the password in a very difficult to use or annoying password manager, like maybe a local instance of keypass on a single device. Log out of the service on all your devices. Now every time you want to use the service you have to go through an annoying process to log in and have time to question, do I really need to do this right now?