Programming?

It would also help if you have any game that you really like, you could search if it has any mods or even better if it's open source and learn how it works even if it seems you don't understand anything, you'll have something to keep you interested

As majority of the people have said, start with Pytrhon. It's easy to read and write, and there are plenty of tutorials and resources you can learn from on the internet.

I had the unfortunate experience of starting with PHP before digging into other languages, but, since I am primarily a web programmer, PHP is my goto language.

I'd say start with python, then maybe switch to C++. Python can do most of what C++ allows you too, but at the cost of performance, since it is an interpreter language; that is, your programs don't run directly on the CPU, but are executed through the Python interpreter.