Don't quit your day job (at least not yet).
When you're in high school it's easy to pick up an instrument or start a band. You see your friends every day, plus you can spend an absurd amount of time just listening to and learning how to play your instrument.
It gets a bit trickier in college - now you're all in different schools, sometimes even different cities. But you still get it to work by meeting up Friday night and even gigging once in a while.
All that gets harder when you get a job. And the reason is because you're likely paying for rent and bills now, and your job is doing that for you. Unless you're a professional musician, playing and making music suddenly become something you do for fun (and for drink stubs, if any).
This is you as a single person in your 20s. In your 30s, it's a totally different thing altogether so let's not talk about that just yet!
The reality is that if music isn't the way you pull an income, then it's just a hobby. There's nothing nothing wrong with that - hobbies are good for you because they're stuff you love doing. But the older you get, the less time you'll have for these hobbies because other things in life take over, like your family and career. You'll need to make time.
As mentioned previously, the trick is to make time for songwriting and producing music, and to do it in baby steps. Even if you've got a demanding day job that needs you at your desk 12 hours a day, you can still make time in the weekend for an hour or two of sitting with your guitar and starting a new song.
The older you get, the less time you'll have for these hobbies because other things in life take over. You'll need to make time.
I strongly advise against leaving your day job if you feel like it's getting in the way of your songwriting. A better thing to do would be to set aside time in your week for music, and to commit to it.
Another thing that I've come to realize is that priorities ebb and flow in different seasons in your life. If you're really busy now, it doesn't always mean you'll be busy with work forever. You are not your job: you could get furloughed or laid off, maybe your business will be sold or will close. These endings are the start of something new - and sometimes, they're the start of you rediscovering your love for making music.