Choosing a Backend Framework: Node.js vs. Django

I'm in the process of selecting a backend framework for a web application I'm planning to develop, and I'm torn between Node.js and Django. Both seem powerful and have their own strengths, but I'd like some guidance on making the right choice for my project.

Here are some factors I'm considering:

Development Speed: I want to build the application quickly, so a framework that supports rapid development is essential.

Scalability: I anticipate the application's user base to grow, so I need a framework that can scale effectively.

Language Familiarity: I have experience in JavaScript, so Node.js seems like a natural choice, but I'm also open to learning Python if Django offers significant advantages.

Community and Ecosystem: Having access to a thriving community, libraries, and plugins is crucial for a smoother development process.

Project Complexity: My application might involve real-time features and data processing. Which framework is better suited for such tasks?

Security: I want to prioritize security in my application. Which framework provides better security features and practices?

I've done my fair amount of research by visiting various websites, but it would be really beneficial if seasoned devs who have experience with both Node.js and Django could give their opinions on when to pick one over the other. Are there any particular use cases or instances where one framework excelled or fell short? I appreciate you assisting me in choosing wisely for my assignment.