I'm an undergraduate student in CS and I want to nominate my graduate student mentor for a mentorship award at my university.
He has been my mentor for a year and a half and over that time he has helped me a lot. We have worked on a project and published a paper together. He has also helped me a lot with graduate school applications as well as applying for awards/fellowships/etc. Suffice to say, there is a lot that I can write for him.
However, I've never written a letter to anyone and I am not sure how to structure it. I've written a first draft, but I don't like it. Specifically:
It feels like I am just listing anecdotes. Is this right or should I try to craft an overall narrative? What would such a narrative even look like?
It feels like I'm spending time on my accomplishments. I'm trying to say something like "he helped me by doing X which resulted in me achieving Y." I want to focus on the X, but I feel like by even mentioning the Y I am taking away from X, but also I feel like mentioning Y helps validate X. For example if I said something like "Because of his help with ABCD, I have admitted into several top Ph.D. programs", does this make the letter stronger or does it just sound like I am bragging about myself?
More generally, what do these types of award committees look for? I want to make sure I emphasize the correct things in my letter.