I've picked all your subjects excluding Sociology, and I similarly want to aspire towards becoming a Barrister. As far as the choices you've made there should be no problem with you continuing to study Law at university one day, as many Law courses at Uni don't require you to necessarily study specific subjects (unlike more scientific courses). If anything they are quite useful if you want to do Law, as they are essay based and require, to some degree, critical thinking. I just finished my AS exams the other week, and the main piece of advice I would offer you is that you make sure you have chosen subjects you enjoy, not just subjects that will help provide a means to your long term ends of becoming a lawyer as at A Level your studies will become a little more intense. Additionally, try and finish your coursework as early as possible, becuase If you postpone it for later on in the year, you might end up struggling balancing doing your coursework and revising for exam in subjects like English Lit. Overall, stay calm, collected and confident and you will do well. Hope I've helped, If you have any specific questions, feel free to ask.