Is My Goal Score Attainable?

Hello,

I wanted to get some opinions. I have not done any LSAT prep before, and I just took my first practice/diagnostic exam today and got a 149. My goal score is 170+ and I want to ideally take the October or November LSAT. Given the fact that I have essentially not studied at all yet, do you guys think I have a shot at raising my score 21+ points in time for either of the exam dates?

Thanks!