I am in a similar situation as I was average mid to high 150s in practice tests, but received a 149 on the August test. The worst score I received on practice tests was a 150 once, and so I figure that there is an incredibly small chance I get another 149 or below. I just canceled my score today. I am certainly not an expert but the key factor I considered was the chance of receiving a lower score on my next test. Hope this helps!

This is the first comment I have written on 7Sage. After 3ish months of studying and taking about a dozen practice tests, I saw my score steadily rising upwards of 8 points. Now that I have my score back I am feeling the same way. The score I received is lower than any practice test I ever took, and saw a drop of 9 points from the last practice test before the actual exam. I feel so hopeless and after months of studying, hundreds of dollars invested, and a summer of missed work due to an emphasis on studying, I do not know what to do.