Close account. Update home router firmware, then get new e-mail account with security with 2 step on chrome. Turn off WiFi if your router has a known flaw that

Close account. Update home router firmware, then get new e-mail account with security with 2 step on chrome. Turn off WiFi if your router has a known flaw that can not be patched = but a new router that is secure. This criminal has probable discovered some secret aspect of his home/work e-mail account and re-hacks the account. It might be a WiFi hack? If you are not tekky enough, see if you can find a tekky student to help you