In a large mixing bowl, whip the heavy cream until it begins to thicken.
Gradually add the powdered sugar and vanilla extract, continuing to whip until soft peaks form.
In another bowl, combine the whipped topping, mandarin oranges, orange jello powder, mini marshmallows, and cottage cheese.
Gently fold the whipped cream into the mixture until well combined.
Transfer the mixture to a serving dish or individual cups.
Cover and refrigerate for at least 2 hours to allow the flavors to meld and the texture to set.
Serve chilled and enjoy the fluffy, creamy texture.