It should be one building block when learning a language. as you said, the gamification works just as well as achievements etc. in video games to keep you going

It should be one building block when learning a language. as you said, the gamification works just as well as achievements etc. in video games to keep you going, but add whatever interests you to the mix. like music, tv shows, try to talk to people (not always possible of course), memorize short poems and say them out loud, whatever you can come up with.