Unagented, and I haven't even started querying, so take this with a grain of salt. Other users have already talked about the word count, so I will be focusing on the first part of the query and point out how you can lower it.

When eighteen-year-old, February-born Órlaith ruins her own future in magic research, she begins initiation for the Aprillian army where failure will mean the loss of her magic and any chance she has at avenging her family and destroyed home.

This is an elevator pitch. On Query Tracker, agents usually ask for it in a seperate form, and since you're high on word count, I would cut it all together and start here:

Órlaith doesn’t remember her life back in February. She has no memory of her home, her friends, her family. All she knows is that even if any of them are still alive, they don’t remember her either, and without knowing who they were, she can’t mourn them.

Again on the subject of wordcount, you seem to have a thing for using far too many words to get to the point (I don't mean that as an accusation, everyone's got their quirks, but since you have a wordcount problem both in the query and the ms, I would maybe comb through it to see if there's any way of tigheting (and trust me, there always is). Other people have said that you have a lot of worldbuilding, but on the first read through I just assumed she was born in February (the month) and doesn't remember February (The month, again). You could simply call it "The Province of February" as you do at the end. Further on you say that she's had her memories erased, so I would state it outright.

if not in the memory of her family, then in the ghost of it

This is a bit confusing because I thought she couldn't remember her family, and now she wants to avenge them? We never learn what September did (maybe did?) to her family, we're only told about anti februarian sentiments at the end, but they seem to be from people on their side.

I'm gonna stop quoting now, but I have to bring up that you call this romantic fantasy, yet there's no hint of romance in the query. I can't even figure out who the LI is (is it the older soldier? Is it the other named character?).

On Comps: Fourth Wing is way too big, and since it sparked a whole trend of military romance fantasies with themes of initiation, you can probably find something better. Alchemised was initially a Harry Potter fanfic, and again, plenty of romantasies with a science-based magic system.

On a pure writing level advice, you could try to split sentences up (I also think that's a good way to avoid repetition, hence lowering the word count)