You might just lose indeed. But there are so many interesting things you can lose at, you'd be crazy not to take that chance. I've "lost" at skydiving, stage improv, novel writing, screen writing, foreign language acquisition, and so many other things. There's a whole lot of fun to be had embarrassing yourself and setting yourself up to get yourself killed.

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On the flip side of that, fixed mindsets in the context of a "semi-boring job" can lead to a LOT of psychological trauma. I won't go into the details but I will say this. Given the choice, you're better off jumping out of the airplane. Trust me on this.