You need to add one thing. The step where 2-phosphoglyceric acid is getting converted to phospho enol pyruvic acid... dehydration occurs in the presence of enolase

And the second generation of ATP i.e. the step where pyruvate is formed is catalysed by pyruvate kinase.

In the preparatory phase i.e. in step 1 n 3 the phosphate is taken by the substrate. So....remove the iP