Prepare the whipped cream mixture: In a large mixing bowl, beat the heavy cream until soft peaks form using an electric mixer. Set aside. In another bowl, beat the softened cream cheese, powdered sugar, and vanilla extract until smooth and well combined.

1. Combine the cream cheese and whipped cream: Gently fold the whipped cream into the cream cheese mixture until fully incorporated, creating a fluffy, smooth filling.
2. Assemble the cake: Line the bottom of a 9×9-inch baking dish with a layer of graham crackers. Spread a generous layer of the cream mixture over the graham crackers. Add a layer of sliced strawberries on top of the cream mixture.
3. Repeat the layers: Repeat the process, layering graham crackers, cream mixture, and strawberries until all ingredients are used, finishing with a layer of cream on top.
4. Chill: Cover the cake with plastic wrap or foil and refrigerate for at least 4 hours, or overnight for best results. This allows the graham crackers to soften and the flavors to meld.
5. Serve: Before serving, garnish with extra fresh strawberries or a drizzle of strawberry sauce, if desired. Slice and enjoy!