- set automatic email forwarding from your Gmail to your new email service (just buy a domain and use Fastmail or something similar). It's in the Settings and i

- set automatic email forwarding from your Gmail to your new email service (just buy a domain and use Fastmail or something similar). It's in the Settings and it's easy - some services like Fastmail have a one click email import Transfer all emails and then delete any content on Gmail - go through all existing services and change your email address, most services allow you to do it. If it's not possible then consider closing and reopening account - never use 3rd party logins (Google, Facebook) - start replying to emails with your new address, people will update the contacts over time, you have to start somehow - you can keep your old Gmail address around for a long time, it doesn't cost you anything