Help! Dont know how to take care of this thing

[snake momma]

So.....despite my snakes I've been wanting a lizard but my mom says their too expensive. Well..my brother came in today saying he killed a lizard. It was a beardie but thank god it wasn't dead but it has a broken leg. Anyway I have no idea how to take care of them. Due to the short notice I have it in a rubbermaid with some sticks, a rock, a water bowl and some lettuce leaves in a bowl. I have a lamp next to it that is giving off some heat. I need to know everything but my main questions are how many crickets does he get a day, how many mealworms a day and does he have humidity requirements? If anyone in Colorado wants a free baby beardie let me.know.