It's been a while since I started improving myself using the so called Free Online Knowledge.
I don't know how people spread things like that, but "Do you know you can apply to many different courses in the more diverse Universities and Institutes from all around the world for free?"
Yes. You can learn lot of nice stuff from mostly of the Colleges you could think. You can learn Mandarim, aspects of thermodynamics, how to improve your creativity, and so on.
And the best: All that 100% online and for free! (Except if you want an diploma from the Institute/University.)
And here goes my my tip for you who wants to start getting all kind of free knowledge:
Coursera: https://www.coursera.org/
EDX: https://www.edx.org/
Hope you learn a lot and have fun.
And, if it's your desire, get some good diplomas to put on your resume cheaper and easier than in -class modalities.
Enjoy the life!
Mace Vidal