I heavily curate my watch history on YT, I know exactly what kind of content I want to be recommended for me, light gaming, odd documentaries, tech, trustworthy debunkings, and that is about it.
Sometimes I get sucked into different types of content, when I want to see cool music videos, but once I am done, I clear them from my history, else they will mess up my recommendations.
I have seen how one new video in my history can completely mess it up untill I remove it from history.