You think I should continue learning C++(at "learncpp.com")and If yes should I continue learning it at "learncpp.com" or should I switch to another website like "cplusplus.com"
You should keep learning C++ IMO. It's a GREAT tool if you look into serious programming. If you just do it for fun as a hobby, I wouldn't recommend looking into C++.
If you choose C++. Learn it by reading LOTS of books, and try to solve every practice problem the book provides you. If there is something you don't understand in the book, a topic maybe. Look up tutorials on Youtube or anywhere on the internet. If you can't find any tutorials, ask on a forum like this.
This is how I do it and it seems to work out just fine.