I can’t say about others , but it is my procedures how i have learned calculus , i am considering you as a school students , so i am saying about my calculus preparation at the time of ISI CMI entrances.
1) complete the school text book asap .
2) for further reading go for I.A Maron , problem in calculus of one variable.
3) next i move on to burtle and sherbart , introduction to real analysis .
4) then i move to problem in real analysis , by titu andreacu .
5) also i have completed some cheap jee book to learn tricks to solve problems .
6) i also followed some extra notes , some of them are in my website , deymathematics.wordpress.com