I had done the same a year ago. I am right now pursuing computer science course and was preparing for NEET exam last year. Due to some mis calculations at the end and also the cutoffs climbing really high in my state, I could not get a seat. But I was pretty much satisfied with my performance. So yes you can go for it. Everything is possible. Bas avoid all the distractions and the new friends that will be a part of your life in the first year of engineering. Avoid going to fests and everything, and stay focused with neet, and try to give the best here as this will help you to change your career.

Best wishes. Thank you.