Yeah early school years aren't very exciting as you learn the basics of a broad number of subjects which you won't even use. As you grow older you get the option to specialise in the subjects you want to study, or drop out of school.
If you choose to stay in school, you will realise that the earlier years weren't really as bad as you thought as work becomes more demanding. However, despite the work getting harder, you will realise you can cope with it a lot better than you used to in early school years as you will have gained experience. You also learn to tolerate the amount and standard of work demanded to gain a qualification in a subject you chose.
Once you leave school, you'll realise that work is exactly the same, which is having a certain number of hours doing stuff that you will probably eventually get bored of, or hate to begin with, making new enemies or friends in the workplace, being commanded by your boss to do things and needing to work hard to progress (get a raise)...
On top of it, by the time you get a job you will probably already be caring for yourself or have a family.
Trust me, school is not a "phase" it is an "experience" which helps you cope with the bullstuff life has to give you.
This is entirely subjective as it is based on my own experience so don't give me bullstuff about it
