Yes, im aiming for A* grade and should have no worries in getting an A*, I should hopefully be getting around 90% per paper. I find maths very easy, I use mathsaurus as well and have done most of the past papers. What I’d recommend to do, is to do the most recent past papers of years 2016-2017 and that will give you an idea of what our exam will be , the questions are so similar throughout all the edexcel igcse past papers so if you’ve done most of them, you’ll basically have done the gcse becuase it won’t be any different. If you are worried then how come you are doing it early in jan? You can do it in June if you want? Our school makes us do maths early in jan but I think I’m ready for an A*. Im sure you’ll do well to