I did think of that as a possibility until I looked more into it. Feelers like to show their emotions and are compassionate. This is something that Dash has had trouble doing, even now.
Also, I have a Esfp cousin, and they don't act alike as Esfp' s tend to be humble. I myself am a Esto and while I see some similarities, somethings are different. I tend to joke around a lot and am serious only need to be, and though i love leading, i am comfortable with following if i have to.
Dash loves competition which I do to but not to the extent as her. She also always has to lead.
I think she may be a Estj, correct me if I'm wrong:
E - As you said, she doesn't like being alone for long periods of time but still enjoys it. This is like me
S - She doesn't focus on the big picture or possibilities, she instead focus's on the world around her and is "in tune" with it
T- She doesn't like showing emotion and isn't afraid speaking her mind or hurting other people's feelings
J- She tends to think ahead and has dreams (becoming a wonderbolt) and while she isn't as organized as twilight, she is to an extent
Estjs think to seriously about themselves at times and have big egos while estps joke around a lot.
If not estj, I am thinking entj because they are like commanders in the army and are tough leaders, a side of rainbow we see when confronted with conflict
What do you think?