Hi nitish where there is a will there is a  way. So if you study hard from today itself then there is nothing that could stop you from achieving your goals. But just keep one thing in mind that in your case it would require a lot of determination and hard work. So if you have that determination and that commitment towards your goal you can surely crack neet. 

I would suggest you to get yourself enrolled in a good coaching Institute. It would really help you. As it has been a gap of two years, joining a course would help you to brush up your concepts and also with the regular test series you would be able to assess yourself in a better way and could work on your weak areas. Also make a time table and follow that so you could finish your syllabus well in time. 

All the best and do ping us for more queries. 

Hope it helps!