im not doing too good for my tests and quiz now. fretting over it. and im getting scared!

Netinfra : 18/30 (pass by 3marks)
Mobcomm : 30/100 (fail by 20marks)
Dmsd : 26/50 (pass by 1mark)
Wireless : 62/100 (this is my highest btw =x)

see? this is getting bad i know. study hard bah. i doubt i want to fail mobcomm.