Great. Maths is not mandate for CAT. Also you can start with a good preparation for CAT.

1)Join up a CAT coaching-online/offline material if you are a less sure doing by self.

2)Schedule a time table-plan and follow accordingly.

3)Be regular with your routine-follow it sincerely. Because the time is less it should be more effective rather than pressurising yourself.

4)Even if the topic is tough-DO IT! Don’t skip. Practice mocks and analysing them is super important again.

5)Develop a habit of reading online stuff regularly- Be it articles, newspapers, biographies, literature etc.

6) You’ll have to attempt CAT so make sure that you solve questions quickly. Gauge a question and skip it if you feel that it will take more time.

Note: Joining coaching classes or preparing through self-study is a personal choice. However, throughout this journey the most important thing you need to do is keep your focus intact, your attitude positive and keep practising more and more regardless of your mock results.

Good Luck.