Due to the importance of pointers and linked data structures forming the foundation of much of the Data Structures content, having your own library handy with common routines for manipulating linked lists can be handy for both learning the concepts of linked lists, but also using with other projects you undertake.
To create a linked list library, you may want to have the following functions:
You can also explore singly vs. doubly-linked lists if you desire.
Making it into a library allows you to quickly utilize it with additional projects, and gives you experience with using code libraries.