KangaRube here: I really hope this does not sound like just writing off your question, but we did all put together a kind of "here are some ways to get started, to think through some things, and gain some confidence" guide a while back:
It is in three parts--- which can be accessed from here (this wiki page just also has a list of the topics included in each part, in case you wanted to hone in on one particular element first, and you can see a "table of contents") https://wiki.minotaur.gay/index.php/Minotaur_Hotel%27s_Writing_Manual