How do you make cheese?

Milk, acid, salt + cooking + aging.
Basically.

milk make cheese

all cheeses start out the same way: milk(skim, whole, 2%, what ever the cheese works best with)that has been heated and mixed with either rennet or other acid to thicken or "clabber" the milk.
After that, there are different methods to make different types of cheese. Some is aged, some is not.
https://www.instructables.com/id/Basic-Steps-of-How-to-Make-Cheese/

It depends on what kind of cheese you make.
My mother used to make ricotta and cottage cheese at home with no special ingredients.
But most other cheese require a chemical called rennet, and many require weighting and curing times.

It is made from the curds of separated milk.

It is made from milk. Exactly how depends on what kind of cheese.