Acf Form : Changing the Label and Instruction of the Wysiwig Post_content field using prepare/field

gistfile1.txt

function my_acf_prepare_field( $field ) { 
	
		$field['label'] = "My new title"; 
		$field['instructions'] = "My new instruction"; 
	
	if ( $field ) { return $field; } else { exit; } 
} 
add_filter('acf/prepare_field/name=_post_content', 'my_acf_prepare_field');