Video length wise I'm going to recommend you go for short videos (5-8 Minutes or even 3 mins) to please the YouTube algorithm. Let me explain really quick...
Since your channel just started the fastest way to grow is with YouTube recommending your videos (or being extremely lucky and hit a semi viral video) and the way you do that is by... Click Through Rate (people clicking your thumbnails) and Audience Retention... and the best way to have a good Audience Retention is to start with short video (3-5 minutes, quick tips or just nice editing doing something new) Once you have an audience... the best strategy is to do longer and longer videos always keeping at least 60% Audience Retention [This is why you sometimes find old short cat videos or random videos in you recommended section]
YouTube will not recommend your videos right away, I noticed that for my channel it took like 2/3 months for a video with potential to be recommended. If Youtube recommends the video, people click it, watch it and like it... then that tells YT they should recommend more of your content and so on and so on. This of course will take time and work, but believe me I talk from experience and is worth it.
If you want to go the easy route.... easy growth (not that is going to work but here's my idea) Make a video ASAP about Eugenia Cooney. She will start getting a lot of attention and you want to be one of the first one's there when that blows up! Is a good way to try to help someone and at the same time grow your channel... as long as you're not toxic... you should be fine! But hey,, that's just an idea!
You have potential,,, I believe I said that before,,, I have the worst memory sorry ^^ Idk if it's because you are new in front of the camera but the way you talk,,, your voice,, so soft... is like mine, like ASMR. I don't do it on purpose of course but I'm insecure when I speak in English... who would thought is becoming a strength for my channel? People really like this weird ASMR type gaming combo (or any ASMR type combo) so keep with it for now,,, should get you more subs if one of your videos get some views!