TBH I don't think your grades will be good enough. Most strong medicine applicants have a string of A*s and As so you would be at a disadvantage there. Also, getting an A in Biology and Chemistry, the most important subjects to study for a Medicine degree, doesn't show the best aptitude for the subject. My school produced statistics for those who had As at GCSE in the sciences, wanted to study them at A level, and their results at A level in Biology/Chemistry/Physics.... nearly all of them got Bs or less. So being truthful I don't think those grades give you a good chance. All medicine applicants should be absolutely dedicated... it's a long journey of serious hard work through uni and training afterwards until you finally get there. It has to be what you want to do for your job for pretty much all your professional life.