def insert(self,data,position):
        new_node = Node(data)
        current = self.head

        if position == 0:
            new_node.next = self.head
            self.head = new_node
        else:
            while position>1:
                current = current.next
                position-=1
            next = current.next
            current.next = new_node
            current.next.next = next

            new_node = next