Daily Life

I am a student, and like the others, my daily activities are usually the same. Today, I am going to describe my usual day. I'd like to know your opinion along with possible grammatical errors and other mistakes. Please help me out. Thanks! As my main duty now is studying, my main activities on weekdays are going to school, to extra classes, and doing my homework.
Every day, I get up at 6.00 am in the morning. Then I brush my teeth, wash my face and get dressed. It takes me about 20 minutes to get ready. I then have a light breakfast at 6.30 am and prepare to go to school. Then, I leave home and go to school at 6.45 am.
I usually go to school on foot, as my school is not that far. It takes 3-4 minutes to walk to school. I go together with my roommate, and often some other friends. We either start chatting or going over the school material after we reach school, and classes start at 6.55 am. We have five periods per day, about 50 minutes each period and 5 minutes relaxing time between periods. We go home as classes finish at 11.30 am.