First of all best of luck for your YouTube Channel. I also have a YouTube Channel and my Channel is monetized. I can share few important tips with you. For more tips you can visit my Channel and watch videos that I have made for new youtubers in order to start a channel, how to upload videos in the right way.
Always remember that never ever post your channel link in others channels videos comments section. This is against YouTube rules. This is the biggest mistake that every YouTuber make in the start of their Channel. Secondly use Canva App to make best thumbnails for your videos. Use strong keywords/tags for the videos. Upload atleast 3 videos in a weak. It'll help you complete monetization Threshold that is 4000 hours watch time and 1000 subscribers.