Ok so Im swedish, this is basically how our school system works:

9 years of school is compulsory. You start at 7 years old and you're done at 15. Its divided into  elementory (year 1, 2, 3,), middle (year 4, 5, 6) and high (7, 8, 9). After that you can continue three years to "college" and graduate at 18 (Its all free btw). Here you can choose what you want to pursue. Do you want to learn about biology, engineering, arts, civics. To get into college you have to have pretty good grades. Not everyone who applies gets in because you "dont have to" go. But basically everyone does if you dont have any other plans or if you dont want to be a failure :). Most jobs want you to have finished it and so on. After college you can seek higher education if you want. 

Ok so. My time at highschool was miserable. Because of my anxiety I couldn't get to school at all and my grades dropped from very very good to below average. And so now I didnt get into the course I wanted to go. Im supposed to start college in a couple of days and I dont want to experience the same thing for three years again. And I don't want to study something im not interested in since im already so tired of school.

If I would wait a year and try to get in next year id graduate a year after my friends and the whole thing when you graduate is to be happy and party with your friends. And its not even sure I'd get in.

If I don't to to college I would have alot less job   opportunities and be the first in my family to not go.