It just means you have to accept ASU's offer if they accept you. You are bound and cannot go anywhere else. Binding usually helps a little if you are below the means.
I would reschedule it if I were you. The first and only time I took the actual LSAT I was in a similar situation. I was scoring in the 160's but not consistently. I decided to go for it based on the advice, "you can cancel it if you bomb it, plus it…
My advice, take another two or three PT's and see if your results are repeatable. That will give you a more accurate representation of where you're at. Per my LSAT tutor, "most 170+ LSAT scorers study for over one-year."
I feel your pain, so sorry. I originally scheduled my test for April and have pushed it out every month. Managing a full-time job and full-time school has made dedicated LSAT prep scarce. Now, I am scheduled for the November LSAT, 13 days away, and …