Just from a purely technical standpoint…
I’m certainly no expert but I did a little bit of freelance work.
When can you try to get some freelance gigs? Anytime you want. Really, there is nothing wrong with asking. That being said…
I interpret your “learning until the front-end libraries” to mean the things that precede the front-end libraries, meaning HTML, CSS, and basic JS, but no libraries. Since most modern web sites use some kind of library, that would be a hinderance. When I search on upwork for example, if I search for “HTML”, most of the job postings expect more than HTML. True, there may be a few jobs out there for just your skill set, but there are a lot of people that have that skillset, at your level. A lot of them live in countries that have very low costs of living so they will work for much less than you will.
I don’t want to discourage you, just to give you realistic expectations. A more realistic goal would be to finish the FCC program (or any fullstack program) and spend 6 months applying that on your own projects. Maybe then you’d be job market ready, but even that might be pushing it.
Again, don’t get me wrong, go ahead and look. And if there is a job you feel you could do, go ahead and bid on it. Just remember that you are bidding against more experienced people, some of whom can live on $10k per year. But still, looking for jobs is a good way to get an idea what is out there and what you need.
But go ahead and try. Maybe you’ll get lucky and find things like this. But I also don’t want you to assume that you’re ready to support yourself doing this. It’s possible, but imho, unlikely. I think the dev community is irresponsible in how they make it sound like you will study for a few months and then easily get the job of your dreams. It’s more like work your ass off for a year or two, work your ass off to find a job, and then land the job of your dreams.
Again, I don’t want to discourage you from looking. But if you are desperate for money, I don’t want you putting all your eggs in this basket and end up homeless.
But I’m not an expert - perhaps some disagree. These are just my observations.