i am assuming your in year 12 rn, i dont know why you wouldn't be happy about your results because your results are amazing, i got 5 9's and 3 8's and 2 7's aand a 6 in language so my grades where pretty much like yours, and let me tell you, the unis do not care about your GCSE's, i have applied for med i am in year 13 and i have had 2 interviews so far and let me tell you the only thing they care about is (personal statement some dont even care about this, UCAT score, SJT score,A level predicted and work experience/ volunteering), and i dont know why you mean Russell group because unless you really want to go to like cambridge or oxford for example it doesn't matter what uni you go to, Medicine unis have their on teir list and some unis arent even russell group ones but they are really good medicine unis, so the "russell group" sterotype only matter if your applying for a normal course, No matter where you study your gone come out of the uni with the same course certificate and get a job in the NHS as you dont need to worry about what uni you go to as, your not gone be applying for a job if that makes sense.
hope that helps
Anything else feel free to ask