Kings offer

hi so I had a conditional offer from kings for three As and today I got 2A*s and and 2bs I am honestly gutted about the B in economics because I truly think I could have done better but I still met my kings offer but I feel like I can definitely retake and get an A or an A* and apply next year to ucl in another course and kings with better grades or even Cambridge if I get 3 A*s, would that be a good option?