I think you should start by taking videos of your gaming and then do a bunch of editing and storytelling of those.  You should try to take lots of video, find a few things you like in the footage, and then do a sort of video essay around them.  We’ll need to make sure that your editing skills are pretty good though, for this to work.
assitant
OK, have you thought about what types of content you might want to make?
assistant
I want to start a youtube channel but I dont know where to begin, can you help?
user
What do you want to do on your channel?
assistant
I want to make gaming videos but also some IRL vlogging content
user