After all that, you didn't get what you wanted. Other people let you down with supplies, or they were late arriving for their great moment in your plan. The grass didn't grow fast enough and the milk didn't spill in the right direction and all of a sudden the world didn't get saved. Now you're mad! Angry! Spitting exclamation marks like nails and bullets.
There's a measure of guilt too. A cold, sinking feeling that someone might call up and ask why you didn't save the world. Maybe there were eyes that saw you sneaking out at the last moment, or even if you didn't actually sneak out, you thought about it. That split second of hesitation might have been all it took for the bad guy to win. It sure looks like the bad guy won.
If you're willing, you can peek at the end of the book to see that the bad guy loses, big time. If you're willing to look beyond the beauty, the brawn, the dizzying intellect, you might glimpse the thing that actually does save the world, and shoves the bad guy down, that one thing that you don't have, and can't have (without an intervention) . Can you guess what it is?