The context of the following conversation is Taylor has taken up himself to ensure Kai study properly thus increasing his efficiency at school.:
Kai says Taylor has become like my drill sargent.
The friend responds He is right,  you need to pick up your grades a bit.
Kai responds i do, and i know I've been slacking.
The friend responds Well, luckily he is helping you now.
Kai responds And I am grateful for that, I needed some direction. My grades got better and I'm more efficient now..
The friend responds Now just get those grades up.