My bad habit☆

I have a lot of bad habits, but the one most obvious one every my friend know is...being late. Almost every time I'm late for appointments(>_<) I know it's really bad, and make friends annoyed, but I cannot help to do it. I always try not to be late at first, but time is run out...I had a forum of English and English-American Literature department yesterday, so I promised to meet my friend at school at 12 am. However, I was late as usual and arrived at school at about 12:30....I felt really sorry for her. She didn't blame me at all. She might have been disgusted by my behavior. I break this bad habit...otherwise I can hardly be a member of society!