bad marks :(

these are my marks on final test

religion : 68
math : 71
geography : -
history : 86
accounting : 66
IT : 76
civic : 81
indonesian : 68
economy : 73,5
english : 60
chinese : 76
sociology : 78

eventhough i have studied but i still got bad mark , what should i do in second semester ?
let's pour the love at 21:49