I have this bad feeling daily that for whatever reason I loose access to my gmail. Don’t think of anything shady but simply I just loose it. There is a very small chance to it but still. You can read the stories that people uploaded their family photos to google drive and the algorithm marks their kids photos CP and they loose their account. Or maybe your email is used to spam or anything similar. There is no way to talk to google support, it is an endless loop of help pages. I just can’t live with this. I know billions of people do, but I cannot. My email address is registered to hundreds of websites including government and banking sites. You could literally destroy me financially or other ways by just gaining login to my gmail. Google could cause me HUGE problems by locking me out. I decided to start transitioning to an email with my own domain. I have the doimain, I have the email client setup. So what do you do with your existing stuff? Most websites dont even let you change the email. I have to take appointment in government offices to change my email. It seems like a giant task.
Have anyone took this leap?
Less of a leap and more of a careful crawl. Use nee email for new services, and deactivate old accounts if possible. I have yet to selfhost email, but for hosted options proton and tutanota are better than gmail for easily. The issue with selfhosting email is that it is easy to get blacklisted iirc.