High quality thumbnails, have a niche and make sure your channel sticks to it, use SEO and find good keywords you can rank for and become an expert in, have clickable title + thumbnails. Also keep your average view retention up (make sure you keep your audience engaged)
1. Before you create a video, you have to research first using keyword explorer on TubeBuddy.
Try to target a "green" niche keyword.
2. Create a good thumbnail that is eye catchy and related to your videos
3. Create a good content to keep good retention
Hello @Gypsy, as you can see you've been provided with some great answers but I would suggest going around the forums and reading some of the posts that give excellent ideas and tips to help you grow your channel. In the meantime, I'll be locking this post as we have a lot of posts that ask the same question while the answers are literally all over these forums. Thank you.