I suggest what I call "Scribbling". Similar to artists who draw, they "doodle", which just means getting a rough sketch of something down. For writers, "Scribbling" is just messily writing the chapter, having a very, very loose outline of what the scene is actually going to entail. Don't worry about punctuation, grammar, spelling or anything else; just grab a pen and paper (sometimes writing by hand helps :)) and go for it <3 hope that helps!