Yes, I've seen the other letters. Here's what I've got. It's a first draft, a little long and I need to better structure the paragraphs, but here goes:
If someone had told me ... blah, blah, blah ... with a deep sense of gratitude and obligation that I respectfully request permission to rejoin the Navy by way of an OCS selection.
Okay, I'll bite.
First paragraph - pretty good, although the opening sentence reads like something out of the letters in the Penthouse Forum ("I never thought this would happen to me...").
Second paragraph - not so good. There is no such word as "unreachableness." I know what you're trying to say, but it is an awkward sentence.
Instead of "This sense of unreachableness played a huge part in my not considering OCS until recently, over a year since I finally received my degree" try sometrhing like this instead:
"I found renewed motivation to seek a commission after a conversation recently with a younger friend."
Too many extra words "...conversation I had recently" needs to be tightened up to "...conversation recently..." (the "I had" is implied).
Revied each of your uses of "has" or "had." Often you can omit them and get out of the past / future speculative tense, or whatever it's called.
It's a good letter, obviously written from the heart, and that is a plus. With a bit of clean up, some strong LORs, and a solid enlisted record and academic credentials, you should be competitive. I caveat that with an admission of zero knowledge of how fierce the competition is these days in the various communities. Or, put another way, I would not have received an NROTC scholarship this year. Back in 1979 /80, they were almost giving them away, and I am living proof.
Overall a good first draft with opportunity to tighten it up and keep your passion / desire intact. PM me if you need a review of future drafts.
See separate post on recomendations for your LOR, and Good Luck!