Not sure on the symptoms, but sounds like you're on the right track. I would reduce stress as much as possible, limit handling to next to never, move them to a room your brothers are playing in less, perhaps an office or your bedroom (if you don't share )

I've heard on here that H. versicolor love moths. I've been trapping them off the front porch light and adding them to her tank. (Doesn't work so well if someone in your family is skittish around moths lol as there are a few escapees every time.)

Have you tried the glass bowl method of feeding? My frogs won't eat anything I shove in their faces, I usually just release bugs into the tank and they get them on their own once I stop staring. How are you feeding them?