After learning c++ only language what to do next guide plzzz.

Answer 1

You can learn python next, maybe. Python is easy and important to learn. But make sure that you know all of the basics of C++, like FlamingArrow said.

Answer 2

Make sure you know what is:-
enurmation , OOP , function pointers , signal handling , before going on ;))
If you do then go with python or java

EDIT : Take this too Make sure you know what is:-
https://www.sololearn.com/learn/7866/?ref=app