when i use validate method in my controller i keep get this error The GET method is not supported for this route. Supported methods: POST

Question

this is my form

@extends ("layouts.register")

@section ("content")

test

@csrf @error('confirmCode') {{$message}} @enderror

@endsection

when i use validate method in my controller i keep get this error

The GET method is not supported for this route. Supported methods: POST.

controller :

public function confirmcode(Request $request)
{

 

    $this->validate($request,["confirmCode"=>"required"]);


}

route:

Route::get("/register",[UserAuthController::class,'index'])->name("register"); Route::post("/user/register",[UserAuthController::class,'register'])->name("user.register"); Route::post("/user/confirmCode",[UserAuthController::class,'confirmcode'])->name("user.confirmCode");