I'm entering my final year in school, year 11, and i want to become a barrister i know this requires me to take the BVC but im not sure what courses i need, if any to take the BVC also what GCSE's i would need. can anyone help me?

i have already got 2 and a half GCSE's so im on track for 5
i've got a B in english language
an A in Science
and a Pass(this exam is pass or fail no grades) in mathematics functional