Davinci Resolve is free. They use the freemium model where the free version is more than enough for a YouTuber and the paid version is more for movie producers with full teams. My only problem with it is I didn't know what the lingo was for common tasks, so I wasn't able to figure out how to use it. Premiere Pro on the other hand has a video on how to do everything and they explain the lingo.
But if you don't have money for an editor, and the others aren't letting you do what you need to do, you can learn how to use it. I was using it for a while until I got Premeire Pro..