Il Palazzo, the Great Advisor, says:
Whatever you do, don't rely on wishful thinking.
You say you are considering quiting school, and getting a job.
Fine, your call. But you can either do it in the above sequence, and end up without education and without a job, or try doing it the other way around. You won't magicaly be able to get one just because you'll put yourself on the job market. You'd have higher chances of managing to do so, if you were an assertive, self-confident fellow, with lots of personal charisma, so that you could bullshit your way through any interview, even without "matura"(Polish~A-lvs/GCSE).
Do you think you've got what it takes? No offense, but judging from your posts over the years, you're rather introverted.
Look for job opportunities first, if you find something concrete, then you can start thinking about leaving school. There's nothing worse than not having either - it's a straight way down to degradation and depression, which makes you even less desirable of an employee.
You think you've got a talent for sculpting, but are you really as good as you think? Don't be basing your life decisions on your own perceptions - start sculpting in your free time, and see if it sells. Or find a sculpting school, and ask them what sort of education do you need to enroll.
Otherwise you might learn that your talent is not worth a dime, and again, you'll end up depressed, without income, and without prospects for the future.
Still, the most sensible thing to do, even if you do have what it takes to become a sculptor, is to find
some job first, even part-time, and work on your own business in your spare time.
As for your other two skills, you can probably start a business making games, IF you're really as good at it as you think? - believe me, it's not easy to come up with something that hasn't been thought before in the realm of board games. At least research the market, and see if your ideas are really so original. And they better be, as nobody is going to pay to publish another Republic of Rome. Still, you'd need a side job to support yourself while your business is in a nascent phase. Or better yet, keep on attending your school, AND work on your projects when you'll find some time.
English - if your teachers tell you that your English is not good enough, then maybe they're right? It might be good enough to converse with a foreigner, but you can't be making any mistakes if you want to live off of it. Do some certificates - FC is not saying much, really, about your ability to use English, although I do know a few people who teach kids in language schools with that one only. You can also try tutoring begginers privately - it all depends on the competition(i.e.saturation of similarly, and better skilled people) in your city, and in this line of work, you need to have something to put in your tutoring advert, apart from "I think I'm good at English". Work your way to CAE, and maybe also a pedagogical course, and your prospects on getting a job at a language school are much, much better. If you've got those, nobody is going to moan about you not having the matura.
But do try getting some certificates before you decide to base your living on teaching English. People won't pay you for lessons without some proof of your competence.
[tl;dr]Be sensible, and make a decision based only on what you have proven about yourself(proven=it sells), not what you think about yourself.
And one more thing, don't let the difficulties that your life is throwing at you make you take the easy way out. Instead of ditching the school altogether(because you can't handle the people, or the teachers, or whatever), why not simply change your school for another one?
p.s.good luck living a comfortable life at 600PLN/month. Unless you're going to live with your parents, and leech off of them every now and then.
Need motivation? Join the army. Bonuses are gone but the training is still worth alot.
After Poland got rid of the national service system, you need to be able to pass a physical exam to enlist. Correct me if I'm wrong, but I think Rooster mentioned once that he's a bit overweight?
Nothing that can't be fixed, especially at this age, but it'd require some serious work. Again, he'd need to find out the requirements, and get in shape
before he tries enlisting.
Man, there's a lot of Do's and Don't's. I'm probably sounding like your parents or teachers - but believe me, I'm speaking from experience(as are they, most likely).
eds: grammar