Hey Lily-G
I really think you should continue this story. It's obvious that you are a very talent writer and have much more to offer as far as creative writing goes. I'm really enjoying this story and the approach you are taking with it at the moment.
I really hope you continue this story as it is really interesting. Diabetes, although not a life - threatening disease, is still a very common disease out there. I think, in this story especially, you could write about how having diabetes is not the end of the world, as some people see it, that it's a disease that can be controlled and lived with. Both my Uncle and younger cousin have diabetes and it has never once stopped them from doing anything they want to do, as long as they control their blood sugar levels. You could use this story to help people understand a bit more about diabetes and what it's like to have it.
I hope what I've written helps you make a decision.
Either way, I've really enjoyed your story and I look forward to reading more from you in the future
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