Your situation is completely understandable. But see, you have invested 3 years of your life and if this year you won't be able to do it, then just stop and think...

See your parents, don't know how you have done things, leave it. And think about your purpose of studying. Ask yourself, if MBBS or any other medical course is your goal, or you will be fine with anything else. If you find out, that no you are surely interested in Medical science then taking another year drop is worth it.

Your parents, have invested and they will do it for the next 1 year, but what you should do, is focus. And you should make a promise to yourself, that you will crack it in the 4th year and nothing can alter it. You have to be in a hook or crook mindset and you should think that your parents hard times will be resolved once you are successful in life.

So if you think, you are really interested in Medical sciences, then take courage and approach your parent. They will surely understand and make this year, your final move.

**Also, try to do as much as you can, this year and see how much you have been able to get through the syllabus of NEET.

For the NEET preparation tips for droppers, consider the link below:

https://medicine.careers360.com/articles/neet-preparation-tips-for-droppers

I hope this helps. Wish you a great day!