Practice

This is the first time I've ever been here.                     √
This is the first time I've ever visited the museum.        √
This is the first time I've ever played the tennis.
This is the first time I've ever eaten something my father made / . . something made by my father
This is the first time I've ever worn a unique* dress          *special, unusual, designer

A 'designer' dress is an expensive dress made by a famous dress designer, who would usually work for 'celebrities' [famous people, like film stars and pop music stars].

Practice

This is the first time I've ever been here.
This is the first time I've ever visited the museum.
This is the first time I've ever played the tennis.
This is the first time I've ever eaten a food that is made by my father made
This is the first time I've ever worn an unique dress