pick something you are knowledgeable about and start researching topics you can cover on your videos. then look at top competitors in the same space and see how they deliver/ what makes their content good. use that to influence your own content and try to be better. you will start out shit and get no views but if you put real work and effort time will reward you and you will dominate the space. don't forget to put yourself out there in the community of your niche once you feel your videos are up to par to start showing people.
also please for the love of god don't think you can upload shit videos and anybody will watch them, that's not how youtube works and when I hear people talk like that it makes me cringe so hard. Youtube is tough to stick to because the algorithm doesn't favor new creators you need around 6-12 months before youtube knows who to recommend your videos to, so please don't quit after 2 weeks if you stick it out for atleast a year you never know what can happen.