A password manager will free you from trying to remember so many passwords, which is why people tend to use the same one repeatedly.
We use the Premium version of LastPass. It’s $36 / year and the family version that allows 6 users is $48/year. They also have a single-user FREE version.
You can find a review of the leading Password Managers so you can chose which is best for you here:
https://www.pcmag.com/picks/the-best-password-managers
https://www.cnet.com/how-to/best-password-manager/
https://www.wired.com/story/best-password-managers/