NS3 is a popular network simulator for students, researchers, and anyone interested in research-oriented work in networking protocols and traffic simulation. While NS3 is a powerful tool, it requires a moderate to high level of expertise with the C++ programming language, as users need to write scripts to simulate traffic or protocols. This can be challenging for beginners or students just starting with NS3. However, you don’t need to worry! With over two years of experience exploring NS3, I am here to share my knowledge. My goal is to help you adapt to NS3 more easily and begin experimenting with it confidently.