Keep a separate notebook for unique substitution methods, reduction identities, and standard derivatives (especially for -th order successive differentiation).
Geometrical interpretation of derivatives.
Dedicate a notebook to track standard
If you have the PDF, you can use the search feature to quickly find chapters on Successive Differentiation or Partial Differentiation . Differential Calculus-Das & Mukherjee | PDF - Scribd
The book has several features that make it an excellent resource for learning differential calculus:
Khan Academy Differential Calculus offers interactive, video-based learning, which can be useful for visual learners as noted on their website.