any ideas?

hi,

i want to refresh my calc I skills and gradually move onto calc II skills before fall semester starts in sept.

i realized i am having troubles retaining the formulaic equations. i've heard a lot about others watching professor leonard and i am considering to watch him too. i've also heard about the khan academy courses on calc I. i just want to improve and get a lot better than where i am at right now,,, as i will be taking physics 1-3, discrete maths+++

however, i would like to know little quirks or tips u may have learned to help u out! how long did it take you too? i would appreciate anything. please help a guy out 😭HUGE THANKS!!!