Problem with Java linked list

[XeroX]

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I'm trying to practice it, but I seem to totally mess it up. It's simple:

I have 10 books. title, author, ISBN, and year. The linked list also should sort it by year, but I will try to do this later. First I need to get the basic frame right. I know the following is wrong and I hope somebody can help me with this.
Summary: The code will display the 10 books sorted by year.

public class Node
{
   Books book;
   Node next;

   public Node( Books bookA)
   {
       book = bookA;
   }
}

public class MyLinkedList()
{
   private Node head;
   public MyLinkedList(Books bookA)
   {
      head = new Node(bookA);
   }
   

public boolean isEmpty()
{
return first == null;
}


public add(Books bookA)
   {
      MyLinkedList current = this;
      
     
      while ( current.next != NULL )
      {
         current = current.next;
      }
      current.next = new Node(bookA);
   }

public void add(String e)
{
if (isEmpty())
{
first = new Node(e);
last = last.next;
}
}

public static void main(String [] args)
{
MyLinkedList ll = new MyLinkedList();
ll.add(Book1, author, ISBN number, year";
ll.add(Book2, author2, ISBN number2, year2;
ll.add(Book3, author3, ISBN number3, year3,;
// add rest of books here

System.out.println("The list of books:");
System.out.print(ll);
}
}

Also: Do I have to add remove and size method ? I don't think it's needed here.
I would appreciate any help!

Thank you

[EINSTEIN_007]

Try the below code as a test and see if it helps you out:

public void insertFirst(Object o) {
      Node newNode = new Node(o, listHead);
      if (listHead == null) {
         listHead = newNode;
          listTail = listHead;
     } else {
         listHead = newNode;
      }
        }