Just figured i know nothing about C++

i claimed to be w C++ programmer bc i know how to code in it but when someone asked me about the the theoretical part of programming/Coding aka C++ i couldn't answer

all this months were just pure practice with no real understanding

i have a note ready to be filled with pencil writing and idk what to do or where to start or if i should even start from 0

im a game dev and i did some projects in raylib

https://redd.it/1qzpdv5
@r_cpp