Reviewing & XP Generation

Hi ! I'm almost done with all the lessons I wanted, it took me a month BUT I'd like to review them. If I want to do so, I have to go through them one by one. And it doesn't bring xp points. Could you provide a training/ a review for each lessons with a short questionnaire ? In order to entertain and allow to stay in the leaderboard, this questionnaire should provide xp points ! Thanks a lot

PS : if you don't understand what I mean, you can have a look in what Datacamp is doing, with a "challenge of the day" to entertain the streak and some other practices