In order to improve your recommendations and see more videos that are relevant to your interests, you can remove recommended content that you are not interested in from your Home.
The following recommended content can be removed from the Home page on your computer:
You can also remove recommended videos from the Watch Next page on your computer.
Remove recommended video
Hover over the recommended video you'd like to remove.
Click More next to the title.
Click Not interested to remove the video from your feed.
Clear "Not interested" feedback
Your “Not Interested” feedback may be used to tune your recommendations. To clear all of your “Not interested” feedback:
Go to My Activity. You might need to sign in.
On the search banner at the top of the page, click More Other Google activity.
Under "YouTube 'Not interested' feedback" click Delete.