Hello,
Congratulations on the great score!
Yes with a score of 593 you'll easily get admission in the top medical colleges of your state and you have chances of getting seat through all india quota also.
The marks difference between the official answerkey and the coaching answer key is around plusminus 10.
So no need to worry you'd probably land into a good medical college.
YOu can use our careers360 college predictor to predict the college at your rank:-

Hope this helps

Meena, you haven't mentioned the State you belong to. This is important because each State has its own All India and State cut offs for each Category. With a score of 593, your rank might be approximately between 7784-10036 . With this rank, you can expect a seat in a GMC in few States like Tamilnadu, Karnataka, AP, Telangana, etc. This is an expected rank range: https://medicine.careers360.com/articles/neet-result-marks-vs-rank . Now this is based on 2019 data and cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. For complete list of colleges that you may have a shot at, please use our College predictor: https://medicine.careers360.com/neet-college-predictor?