I agree completely with your assessment of video editing. It is quite challenging. I would ask you to consider - what is it that your find so challenge?
The tool that you are using or the stuff that is inherent in the process? From my perspective, the tools are easy to learn once you have a sense of what you need to do in a given project. I have not been formally trained in video editing theory. I have some ideas as I am a photographer, so I can see when a video needs color and light adjustments through my knowledge of photography. You may want to consider learning more about lighting, audio, and composition will help you with video editing. Editing is often about correcting mistakes that were made during filming, like the camera shaking or an object in the background that just ruins the shot.
My greater challenge is that videos often have much more video than you can use and you have to make choices. I have been given videos of things like interviews where part of the editing process is about making the best choices. Unless you are working with a director or with some guidance, choosing the "right" pieces from something that you didn't create can be challenging. Plus frankly, looking at the same video over and over for hours or days on end is just boring to me. I would much rather be the person recording video and directing and letting someone else do the editing.