What should i learn after basics ?

Question

method or a learning path.

Answer 1

If you want some pdfs:

https://www.sololearn.com/Discuss/204501/?ref=app
https://www.sololearn.com/Discuss/448721/?ref=app

If you want to know how to practice your skills:

https://www.sololearn.com/Discuss/437973/?ref=app

Answer 2

my advice is :
C++

Answer 3

Learn more advanced concepts in python, maybe even some libraries like matplotlib or TKinter, then maybe try another language like C++ or java.