If you're moving your email address consider using a mail alias. If you move again in the future it will make the process a whole lot easier as you won't need to go to all your sites to update your email address. You only need to update the one email address with the alias provider.
I just set up my own domain for e-mail and I use aliases for signups. Why would I use an alias for my main email if I have my domain? Just trying to figure out if I should be thinking about setting that up
This is what I'm most concerned about with moving away from Gmail. I have literally everything associated with my Google email address and, since almost every website uses email as credentials, it means I'll have to create new accounts for everything. If I move to a new email, I'm worried if they go belly-up or just flat out close my account then I'll lose access to everything.
I'll have to look into using an alias, that would clear up a lot of my concerns.
I currently still use Gmail, but I am looking to move away. I recently signed up for simplelogin.io and purchased a cheap domain name to use with it. I then went around changing my Gmail email address to a different email alias for each and every site I use. It's a lot of work and I found some sites you can't change the email address, they refuse to allow email aliases or you have to contact support to get them to change it. All a pain. For the majority though most are now on my own domain's email address and all point to my Gmail inbox. At least now when I do switch I have done the hard work and only need to update the email address in simplelogin. Since I use my own domain, I shouldn't lose access to the email account should I need to move it away from simplelogin.