Hacked Gmail account and changed my recovery email and phone no

Hello,

I am Mina Mossayebi and my account name was Mina Fartash which was hacked. My recovery account is with Yahoo mail. Please help me to get back my Gmail account.

pls pls help me to get my Gmail account back

I tried so many times but he changed every accesses option to my account. I don't remember the accurate date of starting the account in 2011, but I used to so active for about 2 years in Clash of Clans game.

I send my password to somebody who bought Gems for me. He did that but he stole my game along with my Gmail account.

Sincerely,
Mina