I need some guidance regarding the algorithm.
I have about 4 months of YouTube. 950 subscribers and 4,100 hours of watch time. Many times, YouTube shows my video to over 15 thousand people on the first day of posting. However, in the last video I posted, I achieved a good and consistent click-through rate (9%), an above-average view rate (40% of the video), 20% likes relative to the number of views, an above-average initial number of comments, with very positive feedback. But YouTube has limited the reach, showing the video to about 30 people per day. The video was posted 2.5 days ago and the reach is at 2,300. Why does this happen?
Sorry for my ignorance, but I really know very little about the subject. And I also apologize for any grammatical errors, as I am from Brazil.