How many years have you spent learning C ++?

This would be my 10th year knowing/learning C++ (not constantly of course and very slow at the start). I would like to think I know it decently well but I keep finding new stuff and it's a moving target with all the cool new things they keep adding to the language.

Not just language skills but also how to actually use it.

5 years. First I learned basics of C++ (enough to get my job), then I read more books about C++ and STL, then I learned new standards. And after that I had to switch to C#. Otherwise I would still learn C++.

Thank you for your answers!

2h