My first diagnostic was a 139. I studied for 5 weeks, took the actual LSAT, and got 155. I'm studying now to retake and my best so far has been 166. Hang in there!
I am in the same boat as you! Wrote my diagnostic in May and got a 139. Since then I have reached 160 on my PT's! I am writing this Saturday as well, for second time.
So its been a month since I last took a PT and my actual score went from 139-144 and my BR went from 159-166. I'm guessing the advice is still the same? or?
Hard work will get you where you want to go! I started at a 139 diagnostic and just scored a 150 on only my third PT with a 165 blind review. It's a slow process, but keep working at it!
Started with a 139 diagnostic. 143 first PT after the CC. 169 on my last PT. Just takes time. Took me 14 months to get to this point. Put in the work and it'll come.