Ouch! I think I just had an aneurism and then banged my head on the wall. I don't know which was worse.
I had the aneurism when I read that you think you messed up with only two twists.
Then I fell against the wall when I realized you were a lot like Einstein whose biggest mistake was thinking he made a mistake.
I think there are 4. The two you make when you fold the sides over and another counteracting one in each of the two loops when you fold the "double" down onto the third.
If there were only two, they would already be there with each of the first two folds and there would be no need for the final fold.
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See what you started!!!! LOL!