Hello aspirant

• First of all congratulations you are trying ur best .keep going,you can achieve your 650 very easily .
• Mock tests are very useful for your, preparation purpose
• After your mock tests try to write all your mistakes in a notes and name it as error notes.
• Go through the concept in the text where u have done a mistake.amd note that solution in that error book.for that particular question that troubled you
• Now after a gap of 2 days again go and revise your error book where now you have your tough question along with the answer that was  written by you .
• By this your fear towards mistakes becomes neglible and your confidence levels will boost up
• But remember that one mistake which you have done and corrected should never be repeated.
• Keep on revsising your mistakes .and that takes you towards your success.
• You will be successful for sure keep working hard .stay blessed.
• Hope this will help you.