Let's just put it the simple way. First you make a char (short for character). Then you use that char to do whatever you want with inside the confines of the rules. Typically, it's a good idea to make an intro post once a char is made. Try to make it so that the char has a lasting impression. Also, though there's a literal fuсkton of posts that use like half the text limit at bare minimum, keep in mind most of us have been doing this for a year or two. Writing talent and making long posts in general come with time.