Now you’ve got many different options to start earning online. If you saw something that really interests you, try it out and learn more about it. If you’re really wanting to make a full-time income online, you need to be dedicated to learning how to do what you want to do. There are tons of free resources out there. You just have to search for them!
YouTube does not allow monetizing from Copyrighted content. So you cannot monetize by uploading Movie Songs, Movie Trailers or other copyrighted videos unless you buy publishing license for the same. You may upload videos that are exclusively marked as copyright free. However, In order to avoid any copyright claims in future, it is always better to create your own videos.
As someone who's been immersed in a number of online industries for quite some time, I know a thing or two about what it takes to succeed in this arena. However, just like you, I started at ground zero with little knowledge, but a great deal of passion. What I learned along the way were some invaluable lessons from failure that hurt at the time, but helped immensely in the grand scheme of things.