Hello dear student!!

If you wasn't able to crack CAT 2019  than no need to worry. It's a difficult exam and can't be cracked so easily. Even now you have enough time to prepare for CAT 2020 as the exam is in last week of November and it is okay to take a gap of one year but you need to be very dedicated towards it in this critical time. If unfortunately you won't be able to make through CAT 2020 and you think you will not be able to give more than that and find yourself losing interest in this, than you can go for other options . Otherwise, relax and work hard.

All the best!