Hello dear

For the preparation of jee you need to work on your concepts and practice and if you are well prepared and go through concepts than you can solve any questions and any trick come from any book or any topic by using your conceptual skills so believe on your concepts and knowledge.

Talking about practice you will find that many questions and concepts and tricks in the material can be easily available in any good books like ( adas gupta ,ncert,Arihant , rd Sharma etc) but allen , resonance have grand master package or a very good quality questions which will help you to think more about the concepts in deep and refrain your knowledge througout and it should be done in the final days after the preparation for exam and these questions are highly recommended for the advanced paper only .

In jee mains the CP material is enough but still it depends upon your conceptual knowledge because a student even after solving 2-3 books sometime not able to score in exam.

good luck