Hello Candidate, 

The minimum age to give NEET exam is 17 years .Candidate need to complete age of 17 before the date of exam or else before 31 dec 2020. Since you will turn 17 next year you can attempt NEET 2020. As you will be 12th apperaing too , you can give. For further detqils check eligibility criteria on NEET website.

Hope it helps.