Nexux 5 google chrome now deleting website suggestions

[AC Question]

Hi everyone, so im facing a major problem. I had an ***** who thought it would be a good idea to look up a bunch of disgusting websites on my phone. I tried to delete the history, clear cache, uninstall the app, not use my google account, and a loooooooong list of things with the help of the internet.

IT IS STILL NOT SOLVED!! I need some major help PLEASE!!