Here I am doing my degree in computers. Actually it sucks to feel some things that we forget in each language. Neither can we gather up all basics in one go from anywhere. It really feels worse. I have been reading books lately but each book does not cover up all concepts. Or else I may not be reading it good enough. I am confused how should I go about any language. For now particularly java. How should I proceed with it...?

Guys I want to seek help in datastructures is there any discord link which you know of where I can connect with programmers and discuss my results.
Plz mention it