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Hey, that's not easy, what I just did!
— Carl ‧ Sneakers

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker objects that what they just did was hard, asking for that effort to be recognised. The opening 'Hey' and the exclamation give it the tone of wounded pride, part boast and part protest, as though the achievement deserves more credit than it seems to be getting.
Context reviewed