Control 2 stepper motors with a joystick

#include <Stepper.h>
#define STEPS 2038 // the number of steps in one revolution of your motor (28BYJ-48)
Stepper stepper(STEPS, 8, 10, 9, 11);
Stepper stepper1(2038, 2, 4, 3, 5);
int potState = 0; 
int pot1State = 0;
void setup() {
  Serial.begin(9600); 
 }
 void loop() {
  potState = analogRead(A0); //reads the values from the potentiometers
  pot1State = analogRead(A1); //
  
  Serial.println(pot1State); // sends joystick data to serial port for debuging
  stepper.setSpeed(5);
  stepper1.setSpeed(5);

  if (potState > 600){  //all code below controls movement
    stepper.step(10);
  }
  
  if (potState < 400){
    stepper.step(-10);
  }

  if (pot1State < 400){
    stepper1.step(-10);
    delay(5);
  }
  if (pot1State > 600){
    stepper1.step(10);
  }
  
 }