Definitely seek accommodations! I was scoring in the low 140s at the beginning of my studying. Once I sought accommodations, the time pressure was less of an issue, and I began improving steadily. After almost 9 months of studying, I've learned to navigate the LSAT while still having focus issues and score 164 on my most recent PT. If the adderall helps you focus, take it, because focus is extremely important. Always remember that slowing down to read may take up less time and give better results than skimming, half-understanding, and skimming again.