Doesn't matter if you logged into your phone account on your laptop. You shalln't need two of them. Use one or the other one and remove the other one, that way you have one for both.
Uh oh, is the email associated with it lost password to? If so, then try resetting the email's password. Google can take you though those steps of reset the password of your broken email
As mentioned on your profile, it seems like you've been hacked by somebody or a misfitted employee hijacked the hostage. Once the site is lifted you can erase the NSFW/NSFL files and change your password instantly.
Or they could be a troll/underaged user. I can't confirm if this is a kid or not but if it is then they need to wait a bit before trying to make a new account, as they can't be having an account under 16 imo