If you are over school leaving age but under 18 you are classed as a young worker.
You should not normally work for more than 8 hours a day or 40 hours per week.
Once you have worked 4½ hours you are entitled to a rest break of 30 minutes. You should have a daily break of 12 hours between your work hours and should have two days rest in a week. These two days' rest should also be taken together with no working in between them.
You are entitled to breaks in your work:
Useful links
You can use the library in your Connexions Centre too as it has information for you to read or take away.