So the current version is like, he’s told a story about how great he is, and he’s shown to feel like the coolest boy ever and better than his sister is.
Then we cut to later and he feels like a failure in life because everything is still bad and he’s done nothing, and he’s not who anyone wanted him to become. Also he’s pushed everyone away so he can force himself to become perfect and good and like the hero he was told he’d become. Then he reunites with his sister and they fight because she’s been training for years to finally beat him in a fight or something.
Would this opening draw the audience in? Would you want to keep reading?