I highly suggest that you stop posting videos on this site. It is obvious that people have cowardly tendencies while hiding behind their keyboards.
With this said, a honest criticism would be the context and presentation. You should consolidate and reorganize with a fresh start. A desk, background, etc...just work on aesthetics, intro music, etc.
You have great intentions but the human nature is to be critical and bullish without positive criticism. You should ignore negative people and focus on improving.
Lastly, the feedback from this site shouldn't be fully ignored. Maybe it is possible that this could or couldn’t be a desirable field for you.