hey guys. im in year 11, and i do Mathematics Advanced, and Extension 1. I really need help on how to stop making stupid mistakes. Maths is my best subject and last year i came around 2nd in the year overall. in my maths advanced test i just did recently i got 40/45 which was 6th, and 32/45 in extension 1 which was about 8th. if i didnt make stupid mistakes i could have aced the test full marks easy but i can't seem to sotp making them. i really need help. thanks in advance