Since there are only 5 months left for CAT. How often should I give mocks now and how often should I give them for each of the remaining months.

it's not only about mocks, it about practice, if you will manage to give only 20 mocks in this lat 5 months that will be very helpful..but practice must for different varieties of questions

every weekend once and then shift it to twice a week post 2 weeks and stay consistent with the sectionals Mocks