I created a linkedlist structure and it creates the first structure just fine but the second one ist’t created and the functions for it seem as if they arn’t being ran.

`#include<stdio.h>
#include<stdlib.h>

typedef struct linkedList {
        struct Node {
        int data;
        struct Node* next;
        } Node;

    struct Node* head; // global variable - pointer to head Node
    struct Node* tail; // global variable - pointer to tail Node
};




struct Node* GetNewNode(int item) {
   
    struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
    newNode->data = item;
    newNode -> next = NULL;
    return newNode;

}

void insertAtHead(struct linkedList* listPointer, int item) {
    struct Node* newNode = GetNewNode(item);
    if(NULL == listPointer->head) {
        listPointer->head = newNode;
        listPointer->tail = newNode;
        return;
    }

   
    if(NULL == listPointer->head->next) {
        listPointer->tail = listPointer->head;
    }
    newNode->next = listPointer->head;
   
   
    listPointer->head = newNode;    
}

void insertAtTail(struct linkedList* listPointer, int item) {
    struct Node* newNode = GetNewNode(item);
    if(NULL == listPointer->head) {
        listPointer->head = newNode;
        listPointer->tail = newNode;
        return;
    }
    listPointer->Node.next = newNode;
    listPointer->tail  = newNode;
}

void print(struct linkedList* listPointer) {
    struct  Node* currentNode = listPointer->head;
    while(NULL != currentNode) {
        printf("%d ", currentNode->data);
        currentNode = currentNode->next;
    }
    printf("n");
    return;
   
}




int main() {
    struct linkedList* myList;
    insertAtHead(myList, 12);
    insertAtHead(myList,122);
    insertAtHead(myList,1222);
    insertAtTail(myList,24);
    insertAtTail(myList,244);
    insertAtTail(myList,2444);
    print(myList);    
    struct linkedList* mySecondList;
    insertAtHead(mySecondList, 14);
    insertAtHead(mySecondList, 144);
    insertAtHead(mySecondList, 1444);
    insertAtTail(mySecondList, 19);
    insertAtTail(mySecondList, 199);
    insertAtTail(mySecondList, 1999);
    print(mySecondList);
    return 0;
}`

I tried to make 2 of the same structure expecting both to behave the same way but only the first one did something, and the second one seemed like it never got created.