Do you have Cream of Tartar?
It's a powdery substance, found in spice sections.
"Cream of tartar is best known in our kitchens for helping stabilize and give more volume to beaten egg whites. It is the acidic ingredient in some brands of baking powder. It is also used to produce a creamier texture in sugary desserts such as candy and frosting, because it inhibits the formation of crystals."
Maybe this will do the trick, if you have some. Good luck.
(Otherwise, if you haven't gotten it stiff yet with the hand jobs you've been giving it, perhaps you need to find something else to cream......I mean, another cream to whip.

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