Also you can check this link. It is an initiative by careers360. Here you can get online tests, sample papers, previous year papers, etc.
https://www.entrance360.com/knockoutfull-neet-may/?utm_source=c360&utm_medium=exit-intent-qna&utm_campaign=knockoutfull-neet

Hiii

Since now only 5 months are left for NEET you have to be focused and do smart study.
First of all you need to analyse the important topics as per the weightage given to each topic. Then focus more on these topic but remember to study other topics too. 
Do not leave chemistry and physics they are also very important.
Make a schedule on a daily as well as weekly basis and analyse your performance weekly to achieve success.Divide your day into slots of 3 hours and them study. Do not stress out and be relaxed. Give rest to brain and bosy to stay active. Do not prefer late night studies.
Go for online mock tests and also practice sample papers and previous year papers and time them to know where you stand.
Score might be low initially but it will gain pace with time so do not get demotivated and keep on practicing . Stay confident and focused. Get some good books which will have all the questions topic wise as well as sample papers and previous year papers.
Remember hardwork done with dedication never fails.

ALL THE BEST