Use a password manager
A password manager makes, saves and fills in your passwords, so you only remember one. Your phone already has one.
The pictures are drawings of the screens, not screenshots. Your screen may look a little different.
Drawing Step 1: iPhone or Mac: the Passwords app
Open the Passwords app. It keeps the passwords, passkeys and verification codes you save in one place, on all your Apple devices signed in to the same Apple Account.
Drawing Step 2: Android or Chrome: Google Password Manager
Sign in to Chrome with your Google Account. When Chrome offers to save a password, say yes. It can also suggest a strong one for you.
Drawing Step 3: Fix weak passwords
In the Passwords app, tap Security for advice on weak or reused passwords. Google Password Manager warns you about compromised ones.
Drawing Step 4: Protect the manager
Use a strong screen lock or main password, and turn on two-step login for your Apple or Google account.
Good to know: CISA: "When we use a password manager, we only need to remember one strong password — the one for the password manager itself."
Official help
These steps follow the official help pages: