It's not the banner and it's not the avatar(though you can work on it).You need to work on SEO,search engine optimization. Basically people need to see your video when they search for a certain game.
I'll use your 'High on Shrooms | Zombie Vikings part 13' . Here are your keywords(tags) that you used for that video.
- Zombie vikings
- bork
- hedgy
- thor
- loki
- lets play
- gaming
- gameplay
- facecam
- hack and slash
- pofsag
You rank number 2 for the tag "pofsag" which is completely USELESS. Why? Cause no one is gonna search for your channel. Here is the basic concept behind it.
You need to be using TAGS which your video can RANK for. You need to rank at least in the top 5 or at least in page 1. Think about it do you seriously think you will get ANY views at all if someone searches for the term loki?Or thor,let's play,gaming,gameplay,facecam? None. Instead use tags like zombie vikings gameplay.
To find good keywords its easy. Use the search option in YouTube. Try searching for 'Zombie Vikings' . You'll see stuff like 'Zombie Vikings PS4','Zombie Vikings gameplay'. These are recommendations,keywords which people are actually searching for.
Use keywords like that.This doesn't mean by simply using these keywords you'll be able to rank.Filter these keywords better like 'Zombie Vikings gameplay PC' etc.
Here is a better hack. Download vidIQ or TubeBuddy for Chrome. VidIQ is easier imo. Download it and run it. Search for any video you like and you'll see the tags they are using and what their ranking is. Copy their keywords.
That's SEO for you(summary at least).
Check out my channel ,I have a video with nearly 1k views.I was ranking in the first page for 2 or 3 keywords that gave me a lot of the views. Yes I only have 42 subs but that doesn't matter to me cause well I'm not serious about my channel and I have more views compared to your channel with over a 100 subs cause I do SEO.Not bragging or anything (nothing to brag about) but using a comparison between mine and your channel as an example to make you understand.
Not just tags and keywords but work on your video title and description.Make sure you include your keywords in the description and the title.Don't spam it and no need to include each and every single tag.Instead of including something like 'High on Shrooms' in the first part of your title include instead include they keyword and then whatever you like.
Step 2.
Get better thumbnails. Even if your video ranks ,you need people to click on your video. Make sure your thumbnails are bright ,colorful and have big text.
Step 3.
Cross promotion in different platforms. Self explanatory.
Step 4.
Sticking with one thing. Instead of trying out 10s of different games ,stick to one. Offer guides and strategies about it etc.
Good luck .