Preheat the oven to 325° degrees.
Grab a mixing bowl and mix graham cracker crumbs, crushed pretzels, melted butter, and sugar. Mix well.
Press the mixture into the bottom of a 9-inch springform pan.
Put the pan in the oven and bake for 8–10 minutes. Let the crust cool slightly.
To make the cheesecake filling, grab a large mixing bowl and beat cream cheese until smooth and creamy.
Add the sugar and mix until combined.
Add the eggs one at a time, mixing after each addition.
Mix in vanilla extract and sour cream until smooth.
Pour cheesecake filling over the top of the cooled crust.
Put the pan in the oven and bake for 55–65 minutes, or until the center is mostly set with a slight jiggle.
Turn the oven off and crack the oven door open slightly.
Let the cheesecake cool in the oven for 1 hour.
Move the cheesecake to the refrigerator and chill until fully cooled.
To make the strawberry toppings, grab a bowl and whisk the strawberry Jello with boiling water until fully dissolved.
Let the mixture to cool slightly.
Stir in the sliced strawberries.
Leave the cheesecake inside the springform pan.
Pour the strawberry mixture over the top of the chilled cheesecake.
Put the pan into the fridge for several hours or overnight until the topping is fully set.
Top the cheesecake with whipped cream swirls, whole strawberries, and pretzels before serving.
Serve chilled.