(adsbygoogle = window.adsbygoogle || []).push({}); I really want to learn a new programming language this summer but i'm having the hardest time deciding what i want to take up.

I've already learned go, python, js and a bit of c#. My sights are set between rust ruby and c++
but i just can't decide on which to take up. pls help T.T

Web Apps, PHP would be good to look into, possibly Ruby On Rails. SQL would also be good to learn, it's not a programming language but it is required for working with MySQL databases.