If u get those grades, no problem really. Don't take this the wrong way, looking at your grades, knowing the huge jump between GCSE and A level, I would advise you to try and be realistic, I know many people who got straight As and still only got Cs in a-levels even the ones who practically lived in the library. Also bmat and UCAT aren’t easy, I saw people study loads for it to be beaten by the guy who did revision the week before as they’re aptitude tests. The pressure of applying to medschool also puts a lot of strain on you mentally. I’m not saying don’t go for it, but really look into it and get a feel for it because it isn’t any easier once your in. I personally had to get in via a competitive foundation year where 20people could transfer having achieved a B in chemistry at A-level, so there is other routes, but this was a very hard and toxic environment.