Asking which language you should learn is like walking into a wood shop and asking which tool you should learn to use. Screw the tools, just build something and grab whichever tools you feel are right for the job along the way.
I never could learn a programming language for the sake of learning. I always had some idea of something I wanted to build and then used that project as my learning experience. Hopefully at the end I had something which could possible be useful for me.
You should probably be doing the same. If you have no ideas of what to build, then you should probably change your thinking. NOW is the best time to start thinking about which direction you feel you would like to go and start working on something in that area.
Games? Security? Mobile apps? Web apps? Systems administration? The list goes on. You need to get dirty so that you start to itch. Once you start itching, let that carry you. At that point, all other questions are answered.