INVESTIGATING SCRIPT-WRITING SOFTWARE
Script-writing has its own disciplines. One of the things that the script writer needs to overcome almost before ever they commit a thought to their computer is how to handle the formatting conventions expected if you are to get your scripts accepted by possible buyers.
Of course you can struggle with a regular word processor or you can splash out on commercial script-writing software. Neither are particularly satisfactory solutions for someone just starting out. Happily there are some good open source and free options.