Hey, I was in the same boat as you about six months ago. Honestly speaking, it was one of the hardest times of my life - I would have mental breakdowns in the middle of PT's, have to take walks after feeling illiterate when going through BR, the like. It isn't too much better now and there are still days when I struggle mentally, but there was a fundamental shift in the way that I saw the test when I realized that I've already made it so much closer to my target school / score by just choosing to come back to something I know is difficult and challenging, when so many people in the same position would choose to walk away. Secondly, there IS improvement in the grueling testing hours! It took me about 3 months to finally see it, but I promise you it will come. (diagnostic was 150, most recent PT was 164).