Chance me

I've got 4A*(math,phy,chem,Urdu)3A(bio,isl,eng)

2B(add math,pst) in O levels, and I've genuinely messed up in my As, I'm going to get A in math, B in phys and C in chem,

I've wanted to go into sdsb(acf) but I think it's too competitive compared to my a level grades, I can get a good sat score as I've been studying for 2 months, if I get a good Sat score like post 1500 or around that range, what are my chances looking like?