The biggest obstacle to a writer learning how to write is mindset. Having particular words being used in the writing community impacts on a writers ability to learn. They start focusing on the wrong thing.
The idea of RULES is such a thing. People start obsessing about learning the rules and stop focusing on learning the craft. Rules are comforting. If you learn the rules you will succeed. It is far scarier to hear that you will take years to learn a craft with no guarantee to success.
Books on writing (including free books) can be found here: https://www.amazon.com/Craig-Griffiths/e/B075WDD6HM?ref=sr_ntt_srch_lnk_fkmr0_1&qid=1653688330&sr=1-1-fkmr0 There are a number of articles as well as more on the topic of this video at: http://griffithscreative.com.au If you want to reach out you can comment on this video or make contact via the contact form at griffiths creative.
So many of us screenwriters write things that can never be made. With a little bit of thought we could write something that will sell.
Yes we should write what we know. Tell the story we want to tell. But we must also have some idea of the world we live in and be realistic. Business is what makes the world go round. So consider business before spend so much time on something that will never see the light of day.
Writer Emma Needell has had a long wait for success but is now living the dream. After countless rejections, submissions, and evening classes, her script was picked up by Harpo Productions by Oprah Winfrey and directed by David Oyelowo.