How do I make sure that I land on my head when falling?

[VoidedExistence]

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[LittleCupcake]

If you jump from a height your guaranteed to hit your head at some point, if its a cliff or carpark it doesnt matter

 

[Praestat_Mori]

I think you would need to have jumping experience like a base jumper, just not opening the parachute (but you wouldn't have it anyway in this case).