I failed some of my exams?

Well done for the good marks you have got. Target the subjects you feel weaker on by getting revision guides and going to revision lessons next year. Find yourself a group or activity to do outside school, bowling, dancing, youth group, volunteering, photography, anything you are interested in. You are doing ok for a year 10 pupil. You are going through a stage of growing up and every one feels like this sometimes. Try and enjoy yourself and make the most out of year 11.