First of all, when you want to start learning how to make add-ins for any software: Revit, AutoCAD, Tekla,... and you are NOT A SOFTWARE ENGINEER. You have to know how to use the software and at least one programming language.

In this education, I believe you have learned programming languages in high school but don't worry if it were not python or C#. As long as you know one programming language, others are easy to access.

I want to recommend the website I start learning python, C#, and also C++. Just choose the free courses for which language you want to learn, it will be enough for you to develop tools.

https://www.codecademy.com/

Don't be afraid and start learning, it is just a language.

Please feel free to contact me if you need any further information.

pyRevit website

https://www.notion.so/pyRevit-bd907d6292ed4ce997c46e84b6ef67a0

pyRevit channel

https://www.youtube.com/c/pyRevit/playlists

Revit python shell

https://github.com/architecture-building-systems/revitpythonshell

Revit python wrapper

Revit Python Wrapper — Revit Python Wrapper 1.7.4 documentation

Github popular

https://github.com/eirannejad

https://github.com/gtalarico

My first plugin - Knowledge Autodesk

My First Revit Plug-in Overview | Search | Autodesk Knowledge Network

The Building Coder - Jeremy Tammik (idol)

The Building Coder (typepad.com)

Revit API docs

Revit API Docs

Recommend channel

VA for BIM tutorials - YouTube

Revit API Tutorials - YouTube

Marko Koljancic - YouTube