They're still going to be able to see exactly what you are doing, they probably have all that data indexed and easily searchable by keyword. So it wont matter

They're still going to be able to see exactly what you are doing, they probably have all that data indexed and easily searchable by keyword. So it wont matter if you visit hundreds of random websites, they will still be a record of the exact the sites you are trying to hide from them. But I applaud your creativity and cleverness. Hiding via obscurity is not proper security. You would be better off buying a cheap vps and creating your own private vpn over ssh for web browsing.