Yes, you can definitely crack CAT exam, if you do the hard work as more than intelligence. Plan out the sections strategically as it is not only about getting it right while it is about to follow it properly.

Here are some preparation tips you can follow:

Brush up your basics : It is high time that you have clarity on the concepts. If you have brushed up your basics, you will be able to tackle any question, be it a straight or a tricky one.

 Attempt mocks:  You must have been used to taking CAT mock tests by now. Along with taking the mocks, you should develop the patience to sit in front of the computer screen for three hours without hampering the focus and concentration.

Develop a strategy: After taking regular mock tests and analysing them, you must have identified the strategy that suits you best.

Practise topic wise question : Apart from taking regular mock tests, it is important to practise your weak areas as much you can.

Work on weak areas: Analyze your weak areas & do work on that.

The last &  important be confident.

Good Luck!