dont store full password in your password managers. store half or 3 4ths of the password and remember remaining part like a key. incase your password manager got compromised they wont get ur full password. dont settle for autofill as it seems easy to fill. yes its easy to fill but chances of forgetting your password is also more. always try to see ur passwords from time to time and rememver the remaining part. i remember a lengthy key as a remaining part and during logging, my password is longer and will type entire pass.

enable 2fa, store backup codes in securefolder or in encrypted zip.

change your passwords from time to time.

store in ur brain as much as possible. remember from time to time. when u practice this, u will get used to it