Hello,
Based upon your score in NEET 2018, and the previous year cutoff, chances are less for admission to Government Medical Colleges under All India Quota and state quota. You may have chances in Deemed Universities. Use NEET College Predictor to Check Your MBBS/BDS Chances in All India Quota, Deemed Universities & State Quota seat Based on Your NEET AIR
   https://medicine.careers360.com/neet-ug-college-predictor?icn=neet-clgpd&ici=qna-answer 

Hello,
Yes, according to your score you may have chances for admission to private colleges.
Kindly mention your state.
Also, you can refer to the college predictor tool to check your expected MBBS/BDS colleges based on your rank.
https://medicine.careers360.com/neet-ug-college-predictor?icn=neet-clgpd&ici=qna-answer
Good luck!