Got some help for you, friend!
Holy geez! Combat Arms, that's a game I haven't touched since 2012.
Your video here has no tags, and essentially no metadata other than the title. YouTube will have a hard time putting it in the search engine because it just doesn't know what the video is about.
Examples for the tags could be: combat arms, steam, free, first person shooter, fun, video games, pentuple, opening, unboxing,
ALSO HERE'S A HUGE THING! You didn't put what game you're playing, I myself for instance am a variety uploader, which makes it hard for YouTube to judge the content of my videos, when I go into my advanced settings and upload a gaming video, I change the category to gaming and select the game. Now when people search up for say "Combat Arms" YouTube knows my video is on combat arms and will put it much higher than a video with no metadata!
Hope this helped, if you have a YouTube extension such as VidIQ/TubeBuddy you can def look at some of my video description/tag/title examples for more help, generally you want the title to be similar to the description, and the tags be similar to both of them.