You have to write 100,000 words before you can write anything of quality. I am putting in my video time currently. Making changes and improvements by doing the work in public.
What have I learned? Since the 1st video I’ve improved sound quality and lighting. Since the 2nd video I’ve improved the staging, lighting, framing, and vocal flow.
Get out there and start creating and building those skills. Don’t worry about being good (just avoid being “bad”) and start improving.