I have a very important question, hoping to hear from someone who has been through the same

I have a very important question, hoping to hear from someone who has been through the same.

I have been preparing for 1.5 months now, originally planned to take the exam on August 20th so that I could apply on September 15th with all my scores. However, that means only 2 months of prep. Took step 1 exactly 1 year ago (score 260+)

Took UWSA 1 today and got 267, however I felt really uncomfortable taking it and was unsure about many questions. So the main question is, can UWSA 1 overpredict so much that I may score below 250?

I am using just UW and have finished 70% (fisrt pass, 81.5% correct so far)

I am struggling to decide whether I should take it now or wait for the next season

also, I did free 120 a few days back and it was 87%