Top Law Schools

Hi guys, I was wondering if it is okay to put your weakness on your personal statement and describe how to over came that weakness. For example, it could be something like, I was not a good student, i always procrastinate and sleep during class but because something happened, i changed and become a good student. Is this too much of a cliche or no?

Overcoming an obstacle is a legit personal statement topic, including when you are your own obstacle