The ads you see are targeted to your interests and are based on your Google Ad Settings, the videos you've seen, and whether you're signed in or not. YouTube's Help Center has further information on what causes specific adverts to appear.
These anonymous signals may determine the adverts you view when you're signed in:
• The apps on your smartphone and how you use them.
• Anonymous identifiers connected with your mobile device.
• Websites you browse.
• Previous Google ad or advertising service interactions.
• Your location.
• Your YouTube video interactions.
In your Ad Settings, you may manage the adverts that are delivered to you across devices depending on your Google Account. Your YouTube watch history can also be viewed, deleted, or paused. This should help you get rid of any adverts you don't want, including DataCamp ads.