How hopelessly impossible must it be to undo 25 years of bad internet security hygiene?
From updating all 180 or so passwords which are duplicated several times, on websites I haven't visited in years, and all stored in google password manager within chrome. Where does one even begin to get their hands around it?
first, get a password manager set up on your computer, like KeePass.
then start working through your list of accounts one by one.
for each account, decide if it's even worth keeping.
if no, log into it and scrub as much information from it as possible, then delete/deactivate it.
if yes, log into it and change the password to a new one that you generate and save within your password manager.
optional step for extra internet hygiene: for each account that you keep, make a dedicated new email address that you use for nothing except that account, then change the accounts email registration to that new address.
once done, delete the entry from your chrome password storage.
remember to save your password manager database after every single update you make to it, and make backup copies of the file that you put on different drives and also on separate devices.
once you're done with it all and have everything neatly stored in your new password manager, you can nuke your chrome password manager completely, just to be sure.