I'm a college student right now, looking to pick up new programming languages. I know Java, C/C++, ARM, and a little bit of Python. Any recommendation?
depends on what kind of programming you really want to do. A lot of companies need middle tier app development which is usually in C# or java, but you could easily look into Go and Python. Front end work is way different and is largely all about JS Frameworks. So pick your poison
It depends on which field of Computer Science that you want to study/pursue. I recommend you try C and C++ as they are the most commonly used language to learn programming. After you master the basics of programming, you can try using python or Java.
PHP / Javascript / Python are good languages to start. Note that you can do in PHP what you do in Python (mostly). Just choose what you prefere. PHP community is big and lots of projects mainstream can help. There are also in python of course.