Use mobile apps to quickly edit photos and videos to give them a professional look. This is, of course, the "captain's" advice, because schoolchildren can also use photo editors, but it is also impossible not to say this. "Canva" and "
FaceApp" are suitable for photo processing. For the video — "Adobe Premiere Rush", "InShot".
However, do not forget that the quality of the content is more important than its quantity. Try to keep a balance between the speed of creation and the value of content for the audience.