instead of art for higher in s5 should i do crash higher spanish then do Ah in s6

So i have a week until i need to pick my options for S5 and i want to study and live in spain and i want to study law and maybe become a solicitor im not sure the specifics but i want to get a job with law, in S2 i've always enjoyed spanish but for my nat 5's my mum told me to do french which i hated so would it be possible for me to get in A in higher spanish if i were to crash it in s5 with my existing knowledge with french?
the subjects im thinking of picking for s5 is, english,maths,history,biology, art/spanish?