Most young hitters give up now. They swing at the next two just to get it over. They don't grow in the at-bat. The bat's a white flag, and they're waving it to surrender. To have a good rookie pitch, you have to be good inside.
Good rookies go up to the plate respecting the pitcher, and humble about their odds.
They respect the ball, and shut out everything else. You need courage on the first strike pitch, because you're a stranger in a strange land. You put yourself in harm's way, close to the ball, close to the plate. Maybe you'll get drilled. But only a bit.