Honestly, the biggest hurdle for me was always overthinking the lore. I’d spend weeks researching canon timelines and then freeze up. What finally clicked was writing a missing scene from a character’s perspective I felt the game glossed over. I picked a side character from 'Final Fantasy VII'—just a single evening in the Sector 7 slums, wondering about the plate above. It wasn’t epic, but focusing on a small, emotional beat let me find a voice.
From there, I built out. That one scene made me ask questions about her relationships, her past. The canon became a playground, not a prison. My advice is to ignore the pressure to write the 'definitive' story for the fandom. Find the crack in the world that fascinates you personally, and peek through it. The captivation comes from your own curiosity, not from ticking boxes.
I still keep that first drabble saved. It’s messy, but it has a heart the bigger plots I tried later sometimes lacked.