Hello Sam,
Thank you for your email. I was happy to hear from you.
In your letter, you asked me about my homework. Usually, I do my homework in the afternoon, after school. It takes me about two hours to complete all the assignments. Sometimes I do it in the evening if I have a lot of extracurricular activities.
The most difficult subject for me is Math. I don't always understand the formulas, and I need extra help from my parents or a tutor. But I'm trying to improve my skills and get better grades.
Write back soon!
Best wishes,