hello sachleen try this code it working I edited from your code

// This will store the last known state of the button const int buttonPin = A15; // change as per your button attached. const int motorPin = 12; // const int ledPin = 13; int x = 1; // variables will change: int buttonState = 0;
int oldButtonState = LOW;

void setup() { // initialize the LED pin as an output: pinMode(motorPin, OUTPUT);
// initialize the pushbutton pin as an input: pinMode(buttonPin, INPUT);
pinMode(ledPin, OUTPUT);
}

void loop() { // Get the current state of the button int newButtonState = digitalRead(buttonPin);

// Has the button gone high since we last read it? if (newButtonState == HIGH && oldButtonState == LOW) {

if (x == 0) {
  // Toggle on
  digitalWrite(ledPin, HIGH);
  x = 1;

} else {
  // Toggle off
  digitalWrite(ledPin, LOW);
  x = 0;
}

}

// Store the button's state so we can tell if it's changed next time round oldButtonState = newButtonState; }

hello sachleen try this code it working I edited from your code

// This will store the last known state of the button
const int buttonPin = A15;   // change as per your button attached. 
const int motorPin =  12;   // 
const int ledPin = 13;
 int x = 1;
// variables will change:
int buttonState = 0;         
int oldButtonState = LOW;


void setup() {
  // initialize the LED pin as an output:
  pinMode(motorPin, OUTPUT);      
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);   
  pinMode(ledPin, OUTPUT);  
}




void loop()
{
  // Get the current state of the button
  int newButtonState = digitalRead(buttonPin);

  // Has the button gone high since we last read it?
  if (newButtonState == HIGH && oldButtonState == LOW) {

    if (x == 0) {
      // Toggle on
      digitalWrite(ledPin, HIGH);
      x = 1;

    } else {
      // Toggle off
      digitalWrite(ledPin, LOW);
      x = 0;
    }
  }

  // Store the button's state so we can tell if it's changed next time round
  oldButtonState = newButtonState;
}