NEET is a extremely competitive examination and for that you need to have a proper plan. As you want to study by your own and want to crack NEET, you need to be very much sincere. Nowadays you will get plenty of online lectures which you can follow in order to clear your concepts. But sometimes the videos are incomplete and not sequential. This creates problems in a preparation. So I would recommend you to be very aware about this. Also you need to select the appropriate books for your preparation. Also giving tests is a important thing. You have to give tests in order to check preparation which you can do by yourself by solving the previous year ones.

For Preparation strategy you may follow the link provided below:

https://medicine.careers360.com/articles/how-crack-neet-in-first-attempt

For NEET Important books visit the link provided below:

https://medicine.careers360.com/articles/best-books-for-neet

For NEET crash course from career360 you may visit the link provided below:

https://learn.careers360.com/neet-crash-course-rank-booster/?icn=neet-crash-course-rank-booster&ici=neet-text-mapping

I hope this answer helps. All the very best for your future endeavors!