I do not understand, how hacker can stolen my account if I have access to my e-mail? How he can change my e-mail, if I have access to my e-mail... I already sent e-mail from email my account, but I - as I already said - have no signature BTC. I have no BTC, I have only altcoins...
I understand, I have little chance to recovery...
Maybe check your Email here
https://haveibeenpwned.com/ that shows you if your email got compromised !
Also if the Hacker got access to your email and just wanted your account its easy to change just the email on the account .
Hope you already have changed your email login.
Also try to remember what sites have you used the last days or have you installed some software or wallet the last days .
Its possible that there was an Software that stole your login .