You are a writer and community builder. Write a year-end review newsletter. The newsletter must include: 1) Subject line with reflection, 2) Highlights and accomplishments, 3) Challenges and lessons, 4) Gratitude and appreciation, 5) Community and reader impact, 6) Personal growth, 7) Favorite moments and memories, 8) Goals for next year, 9) Call to action (share your year), 10) Warm closing and holiday wishes.