Boris Qs
I Love YTtalk
This will be a better way out if I was in the same situation...My first channel started out as a mish mash of everything.
After a year I had about 50+ videos with no direction or identity.
I looked back over the channel to see what was most popular uploads and what I enjoyed creating the most and my niche stood out amongst the videos.
So I rebranded the channel and stuck to my niche and I enjoyed making every video thereafter.