O level results out.
You will need your O level results for your A level admission only. And not much.
And A level results for Versity admission only. And not much.
And versity results for a teaching job only. And not much.
Even if you want to go abroad for higher studies, you have to sit for GMAT/GRE and that score is counted more than your result.
And for private jobs, no one asks you for your result or certificate. It's all about what problems you can solve.
Your target should be about keeping a good and acceptable result and then giving good time to really learn the basics instead of focusing on the score.