Also, try and become obsessed with the antics of the various zzz-elebrities provided for your entertainement and train yourself to communicate entirely through emojis, 'likes' and animated GIFs. This way you'll soon find yourself unable to communicate one of your 'wrongthink' ideas. Even if you wanted to.
and if you are completely deplatformed you can always use selfhosted server(it's not that hard nowdays)
Moving my email hosting while keeping my "identity" is one of my primary motivations.
That said, you don't "own" a domain, you only rent registrar services. If you miss a payment (mine is automatic) or become notorious, you could lose your domain.
Still, it's the most practical foothold for most of us.