You need to ditch and replace all your devices and acquire a new phone number. I'm serious. Virtually all large websites these days employ a lot of fingerprinting and persistence technologies.

And yes, ditch them. Even well over a decade ago, Wikipedia of all places already employed IP address matching to link sockpuppet accounts. You must be extremely careful of never using any device that was associated with your old accounts on the same network as the devices associated with your new account. And that includes devices only seen by association.