In a medium bowl, combine the cream cheese, powdered sugar, and vanilla extract. Mix with an electric mixer until smooth and creamy.
In a separate bowl, whip the heavy cream until stiff peaks form. Gently fold the whipped cream into the cream cheese mixture until well combined.
Add the lemon juice to the cream cheese mixture and fold gently to incorporate the flavor.
Prepare a rectangular or square dish for layering. Start by placing a layer of graham crackers at the bottom.
Spread a layer of the cream cheese mixture over the graham crackers, then add a layer of sliced strawberries. Repeat the process: graham crackers, cream cheese mixture, and strawberries, until you reach the top of the dish, finishing with the cream cheese layer.
Cover the dish with plastic wrap and refrigerate for at least 4 hours or overnight to allow the flavors to meld and the cake to set.
Before serving, garnish with additional strawberries and fresh mint leaves for a pop of color.