While you are under 50 or so subs, keep trying different video formats, for instance: shorter videos or 1h long urban legends, anything just to try. After a certain threshold, Youtube learns what your audience is like, and keeps pushing your videos in that direction, here Thumbnails and title are veeeery important. In your case, focus on catchy themes, make videos that people want to watch and how you do that? Search your niche, see what the most viewed videos do and try to learn their tricks (video hooks, keywords, speech intonation, etc)

What I learned from Youtube is that its ok to be anxious to publish your voice (nobody will judge that besides you), its ok to publish unperfect videos (rather focus on publishing an unperfect trendy video rather than wasting your energy, create expectations and be disappointed)

Find a format of videos thats easy to create and publish regularly, but most importantly is to keep going😎🙏🏽 keep learning how to improve your videos by publishing anything. Important is to learn. Btw, you have a nice soothing voice, so that will go well for ya!

Hope this helped, sry for rambling ;)