I have no A-levels, only 5 O levels, no degree and no MBA and I gross high 5 and early 6 figure sums.
A levels are irrelevant the moment the ink is dry. Your MBA and your experience are the things that count now. Make sure your CV is sharp with lots of "doing" verbs.
Iwould start with your name in bold 20 point [ not the heading CURRICULUM VITAE - you are selling yourself not two archaic Latin words!] then a 20 worder "who I am/what I want" paragraph at 1.5 lines psacing in 12 point bold.
Then work history with lots of "doing" verbs.
Then under Education just put your MBA with any key notes about it and finish with your name and contact details. People aren't interested in your interests unless they are something utterly amazing like jumping off the Great Wall of China on a parachute and ballooning with Richard Branson, and even then some jealous git will think "Oh he's no good, he'll only daydream about new adventures so you can't win!