Hi,

If you got negative marks in NEET results 2020 the only effect that occur will be you will not qualify The exam.

In that case you can reappear for exam in 2021.

If you get low marks you can try other options also. Because there are many opportunities to male your career in different fields.

However If your main aims is to get a medical seat than in that case you should prepare with full focus to give yourself a chance. And try next year with better preparation to get good score.

Hope it helps.