When I was studying I wanted 5A*'s. Unfortunately, I never got them, instead I got 2A's and 3B's. I was EXTREMELY disappointed. I said ok, enough is enough, I will no longer be disappointed bcuz I did everything that I could do with what I knew. Also, there is a part of me that STILLS wonders if I had worked harder, studied for more hours per day and more consistently and MOST importantly sooner then I could have gotten my desired grades. Who knows? 

Regardless I am here to give you my take on this and no I am not an As level student to so I can't compare and I hope that I won't forget anything critical about IGCSE since I am no longer following that stream. 

1. If I had done MORE practice on the harder papers ( like prioritizing paper 2 instead of paper 1 in BST ( 0450) ( or paper 1 instead of the practical papers in (0417)). 

2. If I had studied sooner 

Very short but yeah I hope this helps and I look forward to your thoughts:)))