Firstly, students need to understand that Mocks basically help you get confidence and help you to improve your question-solving skills. It also trains our mind to sit for 3 hrs and solve the paper within time. Mocks do not tell us what we will be scoring in the exam but it is to help us score in the exam. If you do not score well in the mock tests then do not panic, mocks are conducted to test your scores and understand where you stand.
When you give a mock, it is very important to analyze your performance. Understand where you are going wrong and work on those questions, your scores will improve and you will start scoring well in those mocks. Your mock scores do not define your actual scores, these tests are designed for you to practice.
Try attempting the unattempted questions, give an un-timed mock and try giving a test of all the unattempted questions of the mock tests and start preparing for those type of questions.
Download the Exampil app and give mock tests prepared by the toppers who scored a 99%ile in NEET. These tests are made by covering all the important questions from the examination point of view.