Umm... In response to the above comment, if you are worried about your frog's weight, the worst thing you could do for it is begin feeding it mice twice a week. Mice (and some types of fish) are very high in fat content and only need to be given once or twice a month. Also, once your frog is large enough to begin eating mice, you no longer need to dust the crickets/worms you use as between-meal snacks, as your frog should be getting all the calcium it needs from the bones of these animals.

Also, I don't know of a way to calm the frog other than just not handling it. You could try misting it regularly if you really want to do something (mine always seems more alert after misting).