First of all, it is obvious that the script is different from any literary form. It is not right, at least unprofessional, to often see friends writing plays into novels or biographies. The script has its own special format, and writing the script is a technical job to some extent.
Writing plays is not a very noble artistic creation. This is just an ordinary job. A playwright is no different from a cleaner. It's a very ordinary job. Everyone can write a script and be a director. Of course, since it is a type of work, it has its own norms. These specifications may not make you an expert soon, but at least they can make you look like an expert. Or, don't let your poor format be the reason for reviewers to shoot your manuscript. Because a reviewer has to read three or four manuscripts every day, if the script format doesn't look very professional, he has every reason to turn over a few pages and put your script in the corner to cool.