I'm currently working on editing together Part 2 of M.E.'s "Character Development" series, which, plus Patreon content, will probably be over two hours of content. And we always have multiple scripts we're working on in the background (though you'll have to wait to see what they are 😉). As for where we learned writing, we have at least a bajillion sources, lol. Writing channels, articles on writing, studying stories we enjoy (or don't enjoy to see what to avoid), and lots of practice.
