Wrong air friction calculation

The air friction calculation launches the rocket exponentially fast sometimes,and fails to stop rocket from going sideways other times.
I used 2 dot products to project the huge surface area(bulky fuselage) and the narrow surface area(spiky nose tip) both to perpendicular of direction of the velocity for area.
Then I used -0.5coeffcientsqMag(v)areadensity for friction.

A correct direction and an unsigned dot product goes a long way.

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