What should I learn after these?

Question

I have started taking a C++ practical programming course and a basic informatics course ,what should I study next after finishing these two?

Answer 1

That all depends on the direction you want to go.
Are you expecting an IT career? (or is it a hobby?)
Read, surf employment opportunities in your direct path. (and a little afield!) The industry is so big that there is no proper general answer to this question.
Remember there will be a latency between your graduating and your being useful to potential employers.
Look ahead; read trade pages.
Study Math always