You need to do your tags right. Using tags that don't get into the first page or (if you're lucky) second is worthless.
In a nutshell, tags are how your video gets searched by people who want to see videos of that search term. "Gaming" as a search term would get you lucky to be in the first 100 pages of search results.
There is a concept, called "Longtail". It is where you keep pumping out videos and those videos will still be getting views a long time from now. Consider, would you prefer to have 2 videos getting 10 views per day or would you prefer to have 100 videos getting 10 views per day? You need to keep pumping out content while keeping the quality and your legacy views will add up as you make more and more videos.
Besides, you haven't put up enough content to actually make a scene yet. 18 videos isn't enough, you will not get noticed in your first couple videos, it will take months of dedicated work to even make a pinprick in the scene.