What is next ?

Question

I think that I know basics of c++ . (pointers ,functions , classes , arrays , templates , STL , working with files , some algorithms , exceptions ) not too strong , but enough . And I still can't do something really worth . Everything I can - sort in different way any arrays or create simple classes/overload operators for them etc.
What should I do next , to become on a higher level than this ?

Answer 1

once you are done learning C++ on sololearn or something, move more into multi-threading. It is very important and something that is a MUST know.

Answer 2

Dive on algorithms and data structures.
Also you can find some beginner project ideas on the Internet.
Like these :
http://www.dreamincode.net/forums/topic/78802-martyr2s-mega-project-ideas-list/

Answer 3

try doing a project in c++ or try learning a different type of language like sql