When everything seems lost and there's no way out of the abyss, then how would you put yourself together?
To despair and to make mistakes is human, however, just because someone trips and falls that doesn't mean they're lost forever in the darkness.
All people have strengths and flaws, and we can as well make use the most of our flaws if we can learn to know ourselves and to understand how small we are in comparison to the cruel world out there in order to stand up and, then climb up the abyss all the way from the bottom to the summit.
There's a reason why this particular episode earned widespread, critical praise in the international media that enabled Attack on Titan to upstage Game of Thrones in viewership: the drama delivered was exceptionally top-notch and blowing up the standards.
The frailty and desperation shown by our main characters delivered upon the audience a very relatable and grounded performance. Moreover, what the viewers appreciated and cheered on the most was Armin unexpectedly man-up and delivering his most human performance: he was afraid to die, and yet he mustered courage to commit to his strategy with every fiber of his life in order to buy enough time to both distract and force Bertholdt to consume his Colossal Titan stamina and, thus, leaving him a sitting duck and helpless against Eren's sneak attack.
Empasse has finally been broken by the Scouts but at a bitter and depressing cost offsetting any chances for joy and celebration now that Armin seemingly lost his life in exchange for Eren to break free from the Walls to accomplish, what originally was just a fleeting fairy-tale at first, reaching the ocean; a goal worthy of Armin to sacrifice his life to secure both survival and victory for his friends and comrades.
Losses and losses, in spite of the victories accomplished in both theathers.
The Beast Titan indulged himself too much making lightly of the deaths of the Scouts he totaled, and, literally, he was fell into his knees by an enraged Levi. Oh, the irony, how the mighty and taller had fallen by a midget but with the strength and carnage of a beast!
To enrage an Ackerman is not to invite death at your doorstep but letting all hell loose onto yourself.
The Beast Titan, a.k.a. Zeke, assumes their party has won, yet he's oblivious that 1. Levi will give him chase without rest due to his commitment to the late Erwin to take down the former, 2. Levi's rage (or any other Ackerman's) is to be dreaded, and 3. anything that stands in Levi's way gets torn to shreds until he finally wastes Zeke.