Ideally one should start giving chapter wise mocks right from the start of the preparation. You should start attempting full syllabus mock tests from January weekly. Since it has become a little late for you , start giving 2 full syllabus mocks every day along with revision of the syllabus from tomorrow onwards till the day prior to NEET exam day.

To attempt such tests, look into this link for help :

https://medicine.careers360.com/hi/articles/neet-question-paper