Can someone check this writing?

When was last time you were ill or had an accident? What happpend? How did you feel?

May be it wasn't the last time but I'm sure I won't forget it.
I had a car accident when I was 12. I was crossing the street with my headphones on listening to music on full volume. I didn't hear the car coming towards me. All I remember is waking up at the hospital in pain. I had broken my left arm and my entire body was covered in bruises. My mother was very worried. I had luck. I could have been hurt much worse.
At the hospital I was bored to death. I had to stay in there for five days and with my arm broken there wasn't much to do.
Since the accident I don't cross a street without making it clear that no car is going to crush into me. I have learned my lesson.