Hello, hope you are doing well,

There are numerous websites which provide mock tests and test papers or questions online. Do search on google for those.

To crack the exam, there are category wise minimum percentile in which you need to score. For general or unreserved category, your score should be in minimum of 50 percentile. For other categories the percentile ranges from 40-45th. Many students who are not able to get scores choose to reappear for the NEET examination.

If you score less, you may or may not get an admission in a medical college. Even if you do, it will be a private college with fees twice more than that of government medical colleges.

Hope this answers your question!