My account got hacked, but i can still access it

I need some help, back a few months ago my gmail got hacked but I can still log in and access it. How could I change it to my current gmail?? Im on this account RN but i really need some help because i have a lot of progress that I do NOT want to use??

contact gaijin support https://support.gaijin.net/hc/en-us/requests/new

Thanks, I will try!

I submitted a request will it be sent to my GMAIL?