I scored a 156 on December's LSAT and a 158 on Septembers... I dropped 2 points. I thought I would increase because after Septembers LSAT, I studied so hard and with new material. I was scoring 164+ (highest 172) on practice tests.... I feel hopeless and I don't know what to do.

Do I need to / Should I write an addendum to my schools about my lower score? I didn't have any unnatural circumstances to occur to me. I just underperformed, and i know in my heart that my scores do not represent my ability to succeed in law school.