I am going to score less than 200 marks in the NEET and now I feel really useless and confused. What should I do?

If this was your 1st drop then dont worry these types of things happen. Dont feel depressed and never listen to people who say negatives things . Just think what u want to do now. Take a pen paper and write the problem u are facing throughout the last year in 5 point and think can u really overcome them. And see videos of topper from past year to avoid confusion in studying . All the best