Starting My First Messaging App Project – Looking for Resources & Advice!

Hi everyone!
I’m fairly new to programming, with a beginner-level understanding of Python and C#. I’m working on a small side project to build a messaging app similar to MirrorFly. If it goes well, I might expand it and share it with friends—or even release it to a broader audience.

I know it’s a big goal, but I’m really excited to challenge myself and learn along the way!

I’m looking for beginner-friendly tutorials or articles—especially video guides—that cover building chat or messaging apps. If anyone has worked on a similar project or has any suggestions, I’d truly appreciate your insights.

I found this helpful blog from MirrorFly that outlines the process:
How to Build an Instant Messaging App for Enterprise? (2025 Guide)

Thanks in advance for any recommendations!