Below, you'll see any text that was highlighted with comments from the reviewer.
Message to Readers
give me the dirt of my piece, don't hold back
I like the sincerity within this piece. It really feels as though you are recalling upon an old memory and I can feel your deep appreciation for the friendship you made.
I relate most to the scoliosis side of the story. I was diagnosed with scoliosis at around grade seven as well and had to wear a brace. So I get the difficulty and isolation part of that. I also had to become(as you say) a scoliosis adviser for my twin as she got it a couple years after me as well.
I think maybe expanding on Dans character would help draw the reader in a bit more. Although your description of events helps to build the story I think adding more about Dan and your relationship will help the reader connect with the piece a bit more.
I think you were trying to go for the importance and value of connections.
I would say look out for grammar and just tiny little mistakes, but overall a good piece.