That’s actually what I do whenever I’m lacking humility as a coder. One F12 on std::iterator (which is now deprecated lol [0]) is enough for me to remember that I don’t know anything.
My gripe with C++ is that you need to know so many things to build even the most basic abstractions. When writing a custom data structure you always end up with having headaches about the specifics of std::iterators and rvalue references and all that jazz rather than focusing on the actual algorithm. There’s a reason why people want to go back to Orthodox C++ (using C++ as C with a few extra features)