RE: wisp
If tor fails to connect for any reason whatsoever, ensure that no other connection is possible... Unless the user deliberately want to not use tor. If toggled off a warning sign 'are you sure' would be advised.
Change your phone number. Don't expose your phone numbet amd watch them fall on their face when you require them to use Signal, but not because they don't know how. The dichotomy will push them away despite your best efforts to maintain contact.