Sure! Here is a detailed and well-structured reply to Ella's email, covering the three questions, with proper letter formatting and approximately 100 words:
Dear Ella,
Thank you very much for your nice letter. I’m glad to hear that you help your parents around the house. I also try to help my family. I often clean my room and sometimes wash the dishes. Last weekend, I cooked dinner for my family for the first time; it was a little difficult, but everyone enjoyed it. My mother usually tidies my room, but I always make an effort to keep it clean myself. It’s nice to help at home because it makes me feel responsible. Thank you again for your letter. I look forward to hearing from you soon!
Best wishes,
[Your Name]
If you'd like, I can also provide a translation into Russian or help with adjustments.