With 2 days left for NEET, it is difficult to  be honest lest to hurt your confidence. But stick to NCERT and previous question papers at this point in time. Do not learn anything new but revise what you have learnt so far. Keep checking the previous question papers and check the mock test released by NTA. Now it is too late to learn anything from the scratch so stick to what you have learnt so far. Also in the examination, do not answer if you are not sure of the question. You do not want negative marking.