If you want to work as a freelancer in Video editing, then if you have the skill of video editing then obviously you can freelance as  video editor and on gaining some experience you can become a full time Video Editor.

If you want to do a UG course in Video Editing then if you have 50% marks in your 10+2 in any stream, then you are eligible for the course of Bachelor of arts /science in video editing or film and TV production  which can be a great career option for you in establishing a career as Video Editor.

For more information regarding Video Editing consider the link below:

https://www.careers360.com/courses/video-editing-course

I hope this helps. Wish you a great day!