Where can i find practice questions or projects for neo4j

I am learning Neo4j (Cypher, Graph Algorithms) for 4 months. I am just reading the documentation of neo4j and practicing the examples in that documentation only. But I am not confident on what I learned and where to use.
Thus,I need some problems or projects for practice.
Please tell me where can i find problems or projects for practice neo4j.
Please suggest me some suggestions to get confidence on Neo4j.
Thanks in advance.