If you start today with a new email, it will take a while but every service/person you switch is one more that isn't training AI.

It can be a win where you get back what you put in. It can literally just be your top three contacts and make a difference.

If you start now you’ll be done in ten years. Source: yeah

Just forward your email to your new email. I did about 5 years ago. Now whenever I get an email that was still sent to my gmail I take a few minutes to change the email, but that's becoming less and less.

Pro tip for when you do move: get your own domain. Plenty of mail hosts allow you to use your own domain, which you can just keep using at the next mail host, so you don't have to update any accounts.

It can be done gradually. It’s a lot of work but you’re not powerless. While you’re at it convert to an alias service so every account gets a unique email. Use your own domain and you can move email providers. I know this is a lot but it’s possible and worth it.

I'm in a similar situation with Yahoo Mail, sadly, but at least I was able to delete my Google account without much hassle.

What is this defeatist bullshit? You overcame every fucking obstacle for all your years only to give up the ghost at the prospect of a little clerical work? You're better than that! I moved a few years ago and I'm doing just fine now - I didnt even move everything, I just realised that a lot of the things that have my email are just birds of the same feather as that of google and I can do just fine without them too. Leave the shitty data harvesters in the past where they belong, with un-updated personal information.