The beauty of Calculus can only be revealed to young recruits by Herb Gross' videos and Spivak's Calculus. If those don't tickle your brain, nothing will.
There are many, many ways to study calculus, so take this as a preference.
For example, this wouldn't be my first choice.
In general, I find the "Definition. Axiom. Theorem." approach very dry and just doesn't fit reality. Nobody ever discovered mathematics like this.
One of the best books I've read is Gausses "Disquisitiones Arithmeticae" rather than any modern Theory of Numbers book.
I've had more insight in sums manipulations (and various little tricks, some of them not even justified in modern mathematics) from Euler's letters than any other book on this subject.
I don't know what happened in the meantime. It sure doesn't look like 18/19 century books were so dry like the ones today.
