I find the easiest way to forget C++ is to try watching CppCon on YouTube.
I've been doing C++ professionally since 1991.
But when I watch CppCon, what the hell are they gabbling on about? It's all complete gobbledegook! They may as well be speaking in an ancient Goa'uld dialect for all the sense it makes. These people are so far down a rabbithole I start to wonder if they've ever seen the surface.
I am therefore forced to the conclusion that despite 34 years of experience in C++ I don't know C++.
Not sure what the Martians have done to deserve that. Let's drop them off in Russia instead, they think it's so great there they can try living there.