Dak Ralter’s line “Right now I feel I can take on the whole Empire myself.” bugs me a bit. It is too upbeat and enthusiastic. As if they are kids about to go to an amusement park, not pilots going out to war.
The point of this exchange is that Dak is as young and reckless as Luke was in the first film, whereas Luke is already old enough and wise enough not to feel quite the same. It’s a lovely bit of character shorthand.