Clean your eyes and clear your throat. Eventhough these aren't the real MUET yet, but marks would be taken for your PB weightage.
From the results, I make a few assumptions:
1. You need to listen to more English speaking radio programmes
2. Need to clean your ears
3. Speak more Manglish IF not English
4. Read the SPORTS section at least or TV Guide from the STAR per day...
5. Read something in English from anywhere whenever and wherever...
6. Sing some English songs that you like
7. Converse in English with your room mates at least a few sentences per day.

I can only suggest those to help you to improve your speaking and listening skills. The rest are up to your own initiative.
For God only help those who help themselves.