I have youtube video. I boosted it with 20k views, 150 likes and 30 comments. In the past week my video was dancing. One day was on 3rd position then on 50th position. Now for 3 days my video not dancing, it is on 44th position. I changed my description, maybe it is why I dropped so much? But I only changed link position in description, nothing else. What can I do for 'comeback' my video to top3?