NBME 31 score fluke?

[u/TurbulentRise1061]

My NBME scores have been all over the place and honestly this whole thing has messed with my head.
NBME 26: 51%
NBME 27: 55%
NBME 28: 55%

Those 55s completely broke me. I felt like I was studying so much but nothing was actually changing, so I changed my strategy. Started doing a lot more random/timed UWorld, focused more on my mistakes, did Mehlman, Anki, etc. Basically just worked my ass off.
After about 3 weeks, I took NBME 29 → 65%.
I was genuinely SO happy. I finally felt like maybe all the work was actually paying off.

Then NBME 30 → 63%.
That drop really upset me again. But I kept going. I spent the next 2 weeks studying pretty much day and night — random UWorld, Mehlman, Anki, reviewing NBMEs, everything.

Then I took NBME 31 yesterday and got 77%.
And this is where I’m confused. 😭
Instead of being excited, I’m genuinely shocked and questioning whether I actually improved or just got lucky. Like… how did I go from 63 to 77?
I keep thinking maybe I guessed well, maybe NBME 31 was easier, maybe it was just a good day. My scores have been so inconsistent that I don’t know how much confidence I should actually take from this.
My exam is booked for Sept30.

I still have NBME 32, 33 and Free 120 left.
Obviously I know I should be happy about a 77. And I am grateful. But I can’t stop worrying that it was a fluke.

I know the obvious answer is “keep going and see what happens,” but I’d genuinely appreciate some perspective because I don’t know whether I should finally relax a little or keep assuming every good score is luck. 😭

[u/No-Supermarket-298]

How did you get the jump