I thought to myself; "victory has never been so sweet".
Yes, it is funny, not dumb! Especially here. But put the period inside the " marks like this:
"...so sweet."
When you get to college you will use MLA, maybe, and that citation style requires you to put an author's name inside the " marks, and you'll include an author's name and page number like this:
"Victory has never been so sweet" (Loughran 28).
Ha ha, but nevermind that for now.
Anyway, the point is that this is very good and well written. You obviously have a complex way of thinking, as the writing reflects, and it is probably okay that you "barely qualify." Everyone knows that your performance during high school education is not necessarily an indicator of your potential. Lots of brilliant people never felt inspired in high school.
Add to the conclusion. Let this being chased by a dog become a metaphor to represent something about your intention and purpose for these next few years. Be creative, and come up with 3 or 4 sentences that elaborate on the SYMBOLIC IMPORTANCE of this story.
:-)