More information on Password Management to come.
In brief, I highly recommend using 1Password to store your passwords although Bitwarden is a great alternative. With 1Password Families you can also easily create a shared ‘vault’ aside from the default Personal vault for sharing passwords. I also like that it includes their Watchtower service, which will alert you if a website you use has a data breach.
Ensure when signing up you generate a strong Master Password. I like using a random four word password as that is easiest for me to remember. An example of such a generator can be found here: Password Generator
Make sure to install the app on your mobile device and the 1Password browser extension on your Windows or Mac computer. Every time you go to a webiste for the first time, type in your username and password and before clicking to login, click the 1Password icon and save to your vault.