bool deleteFourth()
{
	int count = 1;
	Node *hold;
	if(this->length < 4) return false;
	for(Node *temp=head; temp!=NULL; temp=temp->getNext())
	{
		if(count = 3)
		{
			hold = setNext(temp->getNext()->getNext())
			free(temp->getNext());
			temp = hold;
			return true;
		}
	}
	return false;
}