How should i Start???

I wanna study calculus from scratch because I'm very interested, i already am taking the Linear Algebra course.

I don't know what calculus course should i start with, and should i take the (Get ready courses) first or just start with precalculus.

i know it will take time but i am willing to take the effort i am studying math because i am studying Machine Learning and Data Science, but i am interested in math in general and never got the chance to learn it well in my country.

Please if anybody has an advice to how to organize my math learning for Data Science, feel free to share anything you have.

Thanks!!