how to add fairy type

Hey Guys i new and i want ask for a favor.
Can someone help me insert a fairy type in my hack?
I afrait ibroke the game.
I will be greatfull.

I have 2 methods:
1.Use MR.Dollsteak's ips patch (Move/Ability patch) (With that the game will the type in it)

2.(My old method):I used the ??? type to have the fairy type (You'll trade ??? for fairy)
Changed the type resistance of ??? with Type resistance editor.
Then I used NSE 2.0 to change the type icon.
Then I just set the ??? type in a pokemon editor for a pokemon (or a move) and that's it.