if you could gain 1,000 subscribers overnight, what type of content would you create more of?

As YouTuber do you guys like to edit your own videos or hire a video editor?

hello! I am launching a new video tomorrow. I wanted to share my thumbnail with you to have some feedbacks. the video is in FRENCH the words are "perceived value" the title is : Découvre le secret pour vendre plus facilement ! in english: iscover the secret to selling more easily!

I mean from views

Give me advice for improvement