To start writing a million little things fanfiction, begin by picking a theme or a central idea. This could be something like friendship, love, or dealing with loss, which are all prominent in the show. Then, decide which characters you want to focus on. Are you more interested in the main group, or do you want to shine a spotlight on a particular character? Once you've made those decisions, think about the setting. Will it be in their usual hangouts or a new location? Start with a strong opening scene that grabs the reader's attention. Maybe it's a dramatic conversation or an unexpected event that sets the story in motion.
Well, start by getting inspired. Look at fan art, read other fanfictions (not to copy, but to get ideas), and think about what you love most about the show. Is it the relationships between the characters? The emotional depth? Then, consider the structure of your fanfiction. Will it be a short, one - shot story or a multi - chapter epic? For the actual writing, start with a simple sentence that introduces your concept. For example, 'It was the day after Gary's latest treatment, and everything felt different.' From there, build on it, adding details about the characters' emotions, their surroundings, and how they interact with each other. Don't be afraid to let your creativity run wild.