I am in year 11 and I took GCSE chemistry in year 10. I am going to take A-level chemistry but since i haven't done any chemistry for close to a year, I naturally would have forgotten some of the GCSE content. So I'm wondering if it would be worth going over my chemistry notes in preparation for A-level. Would it give me a solid foundation which would help me understand A-level topics better? Or is the GCSE content completely useless when studying A-level? I still remember the large majority of the chemistry content but it is some of the minute detail and more difficult topics that I am unable to recall with ease.