Hello Friend. Today people are uploading tons of interesting videos on YouTube. So, you must need to care about your marketing strategy. Have you ever thought about or have you researched your channel niche or video topic on YouTube? Finding trending topic on YouTube is 1st selection to get more views.
Second thing is to find out the perfect search phrases for your video content and title. Also, use that keywords in your video content. So, search engine also get some good ideas about your video is about what.
Third thing is, if you want to be a successful youtuber on YouTube then, go for promoting your new channel videos with google adwords. It may cost you $100 per month for couple of months. But, when you get quality amount of traffic on your channel then, your quality work will be seen by huge targeted audience then, you get more possibility to gain your subs/views.
Note - Video Quality + Entertained video + good content script + high research trending topic/keyword + Adwords advertisements = to successful YouTube channel/video.