I had the chance, when I was about 20, to study music in school.
They had one spot open and I passed their theory exam and audition (had to play my guitar with a quarter since I lost my pick in the parking lot). They wanted over 10k per year and offered for the first to teach me the same stuff I just proved to them I knew.
I said "no", and it was a great decision. Instead, I went off to work on a video game score with a more experienced composer. Got paid, did a couple more and got paid too. Then studied a bit about digital audio at a technology institute and got to learn some thing I wanted to know from Juno (they count) award winning sound engineers. 7 years later, I got picked from 10 people in my country to be in the screen composers' apprentice program. Met some bigger name composers who I learned from (still hang out with them every now and then and got to work behind the scenes with the music and recording for some popular shows and stuff).
It is also highly probable you won't learn much of value from modern music study anyway, since they're putting this kind of nonsense into it. I saw it creeping in back when.
https://www.thecollegefix.com/college-music-department-pledges-to-remove-the-systemic-racism-from-its-curriculum/
So why am I telling you this? It's not to brag or something.
It's to show you that you don't have to spend stupid amounts of money and time in school to learn a lot and go places. To be frank, depending on school, you may learn less of value than people in the past did. Further, through just studying on your own, you'll ultimately learn more than someone who just goes to school.
I'd been playing and writing my own music for nearly 10 years before I did that college audition. I knew more than many of the students already in the program by then! One of my friends graduated from the very program I auditioned for, and I would definitely say I've surpassed her.
Study scores, read up on theory, get feedback, study scores and write something short every day if you can; always put new concepts you have learned into practice and experiment. It's all about consistency and commitment, really. And study scores.
Here's the thing about music careers that no one tells you. It's something everyone actually knows deep down, even if they don't realize it.
This is something that, due to life experience, a lot of things changing over the last few years, and me being almost the big 30 now, which is probably ancient compared to many users on "young" composers:
The truth about music careers is that nobody who pursues them actually cares about making a career out of music, specifically.
What people want, is for the work that they do, how they put food on their table, how they get that daily supply of Federal Reserve notes in an unending cycle of perpetual usury, to actually mean something.
Oh yes, if you go study to be a civil engineer, modern architect, insurance, IT, or whatever: You can definitely get those Federal Reserve notes.
You'll also be doing the same meaningless bullsh*t day after day. Creating absolutely nothing of beauty or value or unique. Just a replaceable cog in a corporate machine, chained to some desk or manual labor, the latter of which you don't even get respect from society for doing anymore.
Medieval peasants, contrary to popular belief which seeks to demonize our past with lies at every turn, worked an average of 20 hours a week. Most everyone grew their own food, and they ate better food (unless there was a famine) than we do today. Most people had better teeth too, because of low sugar in their diets and stuff (they also did brush their teeth with hazeltwigs, salt paste and cloves which is actually effective). Every single person, no matter how rich or poor, could afford a large family. Your taxes were just a fraction of the total land you had and your sons owed military service to the lord.
Other than that, people had time to do all kinds of creative things. Even the peasantry. They beautified the environment around them, they painted, they wrote music and poetry, they had parties and festivals with their neighbors, etc. They did and made things that actually meant something, and have lasted for hundreds or thousands of years after their death.
What do we do now in this plastic dystopia of consumerism and usury? You go to work at a retail job, that is paying increasingly less while your cost of living rises, jobs themselves are becoming more scarce, just so that you can get enough Federal Reserve notes to eat and not be homeless every month. BUT, although you maybe can't afford a family and things that would actually give your life a sense of meaning and purpose, fear not! There are all manner of mass produced, meaningless goods that will give you temporary relief! You can buy ever more legalized drugs to numb the pain! You can buy all these plastic Funko pop figures (that millions of other people have) to line your shelves with to show that you're a fan of X consumer product! You can bingewatch that product on Netflix for the low price of 15 per month! Don't forget to get excited for the next cookie-cutter Marvel film and buy the next AAA video game to escape fantasy land (just like with drugs) for hours on end! Then, get back up tomorrow, and hit that 40 hour work week to get those Federal Reserve notes and do it all over again!
What people who want careers in music, or any other art, actually want: Is an escape from this clown world system.
My advice to n00bz is to try and find a more reliable job that is also in something you enjoy and allows you to be at least somewhat more creative. Because trust me, I've been there, if you don't — you'll be miserable every time you're not writing music.