Then my suggestion for you is: build stuff.

Your first language does not really matter a lot, if you want, learn multiple at the same time and try out things. Or stick to one and branch out once you have it learned reasonably well.

If you have some time on your hands, take the challenge and try to code the AI in ruby. If you have any questions that google cannot answer, ask here, I can happily help you :) And if you share your code, we all can help you improve by giving you small tips and suggestions with each new iteration :)