I am looking at the subscribers - what is other content type bringing in subs? See pic below

How do you find which video is bringing your subscribers without clicking on the stats of each video?

I made these for my latest video. please let me know what i can improve

As part of my challenge to post one video per day until I reach 100 videos by February 2nd, 2025, I’ve already posted 29 videos in 29 days! During this time, I’ve received 2.421 views, 117.2 watch hours, and have now 122 followers (+23). I’m committed to posting daily “imperfectly perfect” videos, until I hit 100 videos!

I just found out that you can do clips on Youtube to promote a video - does anyone know how to promote the clips - do we have to promote them ourself or YT does it for us after we create them?