Dear Raksh*tha,
First try and figure out ur mistakes (100% there) then promise yourself to remove them. Believe me there is nothing wrong with your preperation but U hv to do some homework to improve ur performance. Be confident and enhance your preperation.
prepare ur notes in ur own language and revise them properly.
Do not leave any chapter.
Complete your scanner fully.
Complete the practical question given in study material for all numerical subjects.
Regards