Thanks for the response!
Yes, I do have a storyform picked out. The overall story goal is Understanding, and the MC is a Change/Stop character. So basically, she spends most of the story trying to hide a terrible secret from her family and friends, only to change her mind in the fourth act and take a leap of faith into revealing the secret to them and hoping that they'll understand.
Dramatica Story Expert gave me the values of Prediction for my MC's unique ability, and Suspicion as her critical flaw. It initially made the most sense to me to frame these two items from her point of view, so to speak: she's uniquely qualified to achieve her goal of thwarting the other characters' attempts at understanding her secret by predicting what concerns will arise in her quest to hide her secret and what she will have to do in order to keep it buried. But what undercuts her is her suspiciousness. In short, she's not quite as good at hiding her secret from the rest of the world as she would like to think she is. Her suspicious behavior is a big part of what drives the other characters towards pursuing the overall story goal of understanding in the first place.
However, I've been burned before when it comes to determining/encoding my storyform because I leaned too far into the character's subjective points of view instead of remaining objective about their qualities/effects on the story! So I want to make sure that my above framing of these two traits is correct (or at least plausible) before I commit myself to anything.