Well depending on how complicated your game will be. How much time do you want to spend learning the new system vs. how much time do you want to spend coding/making your game?

If the amount of time you spend learning the new system exceeds the amount of time you would save coding it, you might quickly lose motivation to complete your project. So get this one done, and try out another language by either porting the same game or try your new game on it.

In almost every language I've tried including assembly, I've made a "Guess the number" game like a Hello world. (you have 6 tries to guess the number between 1 and 100 with only "less" or "more" as hints).