How fast can i learn C++ as a fast learner and clever person?

Hi, i'm from poland and i'm wondering how much time would it take me to learn C++

Using learncpp website and within a few hours i was able to memorize and create diagrams about Functions, Statements and Variables. Aswell as some other things.

I already made a simple code where i can input a number, it multiplicates by 2, then it asks for another number to multiplicate the result with that number. Then it asks for another 2 inputs where it overrides the first ones and multiplicates them aswell. It also added some words so it feels like the console is talking to you :>