We think the same
Aha! This merits a comment/observation/point of criticism:
Superficially, it might
appear that you "think the same." The overriding point of this essay, however, needs to be that you DON'T.
As is the case with the other essay (and probably with everything you write), this is very engaging. However, whether this essay's mostly about YOU and your identity as opposed to your relationship with your sis is another matter entire.
It's fun to work with students like you because I can focus on subtle things like this...
truly treasure the kind of closeness
Read it aloud and tell me whether you wished to create this alliterative effect.
Paradoxically, although you're obviously a gifted student, I think that a slight "dumbing down" of this task (that is, the instructions that I'd give---NOT the quality of your writing) might be in order.
I hope I'm making sense with all this.
If we don't discuss these papers again, I hope you enjoy the remainder of your summer!