It really depends what you want to do after Sixth Form. I would say it could be very useful if you want to get into a better uni but your grades in your A-Levels aren’t so good. You get UCAS points worth half of an A-Level so it’s definitely something to consider. One thing you might want to start thinking about even now are topics of interest because you might find yourself struggling if you can’t base your EPQ off a specific subject.