No bake cheesecake

I made this recipe first when I was in middle school. I thought I was the world's best teenaged chef. Still good in all it's non-cook glory

1 store bought graham cracker crust (you can make your own if you are so inclined, the teenaged chef did not make her own)
1 8 oz package cream cheese softened
1/3 c. sugar
1 c. sour cream
2 tsp vanilla
1 8 oz container Cool whip, thawed

Beat cream cheese until smooth then blend in sugar.
Stir in sour cream and vanilla
Fold in Cool whip.
Spoon into crust and let sit in the fridge at least 4 hours.