Currently I am writing a scene featuring a couple of characters and introducing some key world building, personal defining moments. I am almost done with this scene and know how I want it to conclude, having written the majority of it. Planning the next scene has led to many ideas I've been jotting down over the past couple of days. I'm really gung-ho and want to get to know this character featured in the upcoming scene, yet the previous one is not quite done. Not to mention the events and conclusions of the almost finished scene lay out the goals and personalities of key characters throughout the rest of the story, and are recalled upon a lot. Should I tough it out and finish the scene before moving on to the next one? My only hesitation is that I will lose inspiration by speculating and daydreaming so much about what will happen next and how that person will react. How do you write scenes? Chronologically (this is what I typically do, but sometimes stray from)? Ending first? Right smack in the middle? Snowflake method? Upside down and backwards?