Targets review

I hit my SA1 targets for my English,Chinese and science but sadly I did not hit for my maths.My maths results were not even close to my targets .My target for maths is 80 but I got 66.I feel very sad for my maths but very happy for the other subjects.I can improve my maths by doing more assessment books and stop playing to many games.I think why i did not hit my maths target because i was too careless and over confident.