First, make sure your thumbnails, titles, and descriptions are super engaging and optimized with relevant keywords, this can help boost discoverability. Try mixing up your content a bit by experimenting with different formats or themes that could attract new audiences or bring back old ones.
Consistency matters, so keep posting regularly, and engage with your audience through comments or polls to keep them coming back. It can also help to check your analytics to see if there are any trends or drop-offs in your audience retention that you could address. Also, don’t forget about sharing your videos on social media to expand your reach beyond YouTube itself! For more info on optimization, check out resources like https://www.youtube.com/creators/.