Everything you need to secure your self using back up and write down your 12 seed phrase . They have provide recovery methods in case you lost access to your email .
You could never lost access to your bitcoin . Your coin yours your keys . Each address signed with PGP , and can generate new address every time after you transaction . I can not imagine someone would get email phishing .
It’s encrypt email , that person who manage to take control your encrypted email must be very high intelligent .