As the poster above me asked: How well do you know your theory and the craft of composition? If it is simply that you're feeling stumped, or struggling to get it to sound how you want, then this is usually the source. I would also recommend you get a MIDI controller to input notes into Musescore that way if you don't already. It would be painfully slow trying to input it with mouse and keyboard. Your piano trio may go faster if you use a DAW and kontakt libraries instead of musescore. Then, you can just record your piece in real time, and with pianos, you don't have to worry about keyswitches and other MIDI annoyances. Honestly, it really isn't. Especially if your goal is concert/neo-classical stuff. It is better to put out 5 pieces per year that are amazing, then to release 10 middling ones just because you feel you have to hit a certain number. Even from the most iconic composers, only a handful of their pieces are really well known to the masses. In many cases, the composer spent anywhere from weeks to years writing them.  Even bands, who typically are doing way simpler music than classical; each new album is a result of 1-2 years (or more) of songwriting and selecting the best ones for the album. Back in the days of record deals, labels would demand an album of X number of songs within a short time-frame, which is partly why "Girls, Girls Girls" is the only decent song on that album. Also, remember that Carl Douglas's only song of note was 'Kung Fu Fighting' 50 years ago and he wound up with a net worth of 5 million. In other words, if no one is breathing down your neck to get this done and paying you to do so, take all the time you need. Lastly, since you say you're in school it's safe to assume you're pretty young: Know that the field of professional orchestral and neo-classical music is not a pursuit for low-time preference individuals; it is mainly an old man's game. I lucked out when I was 18, and got my first professional job, but that is an extreme rarity. Most guys don't see any success (financially or otherwise) until they have DECADES of experience under their belts. So aside from the aforementioned advice, I'd say: Take your time, and just keep chipping away at your pieces. Even 1 bar a day is progress. Because as the saying goes:  

I think the idea is interesting overall! The instrumentation is cool and I like some of the rhythmic ideas! My main concern would be the musical "goal" of the idea. For me it seems to loop without any development. As a type of background music to say a video game, I think this type of piece would be a perfect for it! But if it were meant for a more "performance" type of music, then, I would look into how to develop ideas further! As it is, it does not sound bad! I would like to ask, who are your influences and what type of music are you looking to write! Keep going! Also, my ear did not bleed lol

How well is your knowledge in things such as harmony, counterpoint, and form? I would say having a great and in depth knowledge in this topics can help! Also, what trios inspire you, and do/have you analyzed any of the pieces! By doing so you can figure how trios are written, and if you choose to, model your work on those pieces!

Here is a Fugue in C Major that I composed for Pipe Organ. Overall, I think it sounds good, but I am open to any feedback! I am eventually write a prelude for this idea as well! Also, for anyone more familiar with the instrument, do staccato markings make sense for the pedal part of the idea? Thanks!