Hi,

Yes there are 4 year dropper who cracked neet and got AIIMs.In my opinion clearing neet in first attempt save your time and mental health as dropper's mental pressure will be higher,if you sincerely devote your 2 years,(11 ,12) for it. Every year  higher competition makes it difficult to clear neet as cutoff increases.But if your passion is MBBS clearing neet after 4th attempt is worth  to get into  college like AIIMs.

If you are preparing for neet 2022,here are so.e resources to strengthen your preparation.

https://learn.careers360.com/knockout-neet-may

Hope my answer helped.