Check your watch time among your subscribers only. Odds are the majority of people that are watching your new content at this stage are not only not subscribed, but have never stepped foot on your channel ground at any point in the past. The average YouTube watch time is 40% across most videos everywhere ever. I'd focus on making more entertaining or engaging content that brings your audience retention up to that point.
As expected, you are of youth and a gaming channel. But it would appear that your recording quality is right about as slow as it gets. Audio clarity is rather poor [ref: Roblox: The Normal Elevator], but that aside your age it is harder for us of older ages to really give much for a young person's gaming channel. But you are also trying to poke little holes into the YouTube demographic that is Minecraft. The only way you could possibly get organic views for those videos is through related feeds.
Your best chance at getting higher audience retention is first to get a better microphone, but second to focus on games and production styles that bring in people of your age group. Something that younger demographics would be more interested in watching. I've noticed with gaming channels run by younger people that they trying to play games that are intended for older people, trying to get their attention, but the older people don't want to give them much mind because a higher pitched voice overtop of a horror game doesn't work. As unfortunate as it might sound, your best way forward is to produce content that would be considered age-appropriate, which means to cut out the FNAF and titles like "MURDERING YOUTUBERS".
Pure things like that Pixelmon thing and the MCPE Christmas update would ultimately be the best stratagem for your channel as it is more likely to bring in people of your age and those are the people that would be more likely to stay around for longer.
From there, it also helps in the gaming video industry to make videos that are of a decent but not choking length. Something around 5 to 7 minutes would be the area you should be looking for. Although it's important to remember that there will always be people who will click away right away, either it be from a boring intro or just people being uninterested after clicking.
As I said, focus on getting that 40% average viewer retention across the board.