My very embarring question on my other account shows up when my full name is typed in, how could i stop thi?

I already delete the other account but apparently it would take 90 days, but please tell me the question is sooooo embarring and its come up automatically when my full name is search on google, im only 15 im scared it WOULD affect my future, before i delete the account i already change the name displayed in public but before that when i ask the question the public name was my real name. please help :(:(:(