Likelihood of Diagnostic Score Outlier

Hello,

I took a proctored diagnostic test and scored 159. I had only read the LSAC 'primer' book and felt like I was guessing/going on intuition for all of the games and many of the more difficult rc/lr questions.

I'm just wondering if this is a reasonable score, or if it's more likely to have been an outlier/lucky score. I've been fairly conservative and set my goal score at 160, which seems to be the general threshold for acceptance here in Canada.

tl;dr is it safe to be happy or should I be prepared for a letdown at my next diagnostic?