Dear Aspirant, 

It's really wonderful to see that you want to pursue a challenging and upcoming career. For one to become a YouTube star or a social media influencer, it isn't necessary to have a certain qualification but incase you want to improve your skills which is communication, you can opt for Mass communication or Journalism or even learn Psychology for that matter which will broaden your knowledge about reaching out to people and help you receive the required exposure. Hope this helps, cheers! 

Dear student, for becoming a youtuber or social media influencer, you can definitely go in the field of media and journalism. You can also take up a certificate course in digital marketing which will help you in promotion of a product. You will also have other options in this like  TV anchor, news reporter and others