How do I turn off my void loop function after a certain IF condition is met? (arduino) - arduino-uno

Question

I am trying to make a simple burglar alarm using magnet value as my door. After pressing button1 it goes into countdown and then the user should be able to press button1 again to insert a 3 digit code with the help of pmeter. Except that after button1 is clicked it calls toggleOnOff() again. How do I block my void toggleOnOff() function after the conditions of the first IF statement are met? Thank you in advance.
int startMagnetValue;
int Code[3] = {1, 2, 3};
int userCode[3] = {0, 0, 0};
int secondsLimit = 20;
int countDown;
int pMeter = 0;
int pMin = 14;
int pMax = 948;
unsigned long time_now = 0;
unsigned long time_then = 0;
unsigned long seconds = 0;
unsigned long secondsbefore = 1;
unsigned long interval = 1000;
void setup() {
initializeBreadboard();
startMagnetValue = analogRead(MAGNETSENSOR);
}
//turns off leds
void turnOffLEDS() {
digitalWrite(LED_RED, LOW);
digitalWrite(LED_BLUE, LOW);
digitalWrite(LED_YELLOW, LOW);
digitalWrite(LED_GREEN, LOW);
}
// returns true when the difference is bigger than 50, returns false when it's less than 50. True meaning door is open and False meaning it is closed
bool isOpen(int magnetValue) {
int magnetValueDifference = abs(startMagnetValue - magnetValue);
if (magnetValueDifference <= 50) {
return true;
} else {
return false;
}
}
//Toggles the alarm On or Off
void toggleOnOff() {
isAlarmOn = !isAlarmOn;
delay(200);
}
//registers if the alarm is on or off, also prints current magnet value to the oled
void loop() {
pMeter = analogRead(POTENTIOMETER);
int currentMagnetValue = analogRead(MAGNETSENSOR);
pMeter = map(pMeter, pMin, pMax, 0, 9); //translates pmeter to simple digits
OLED.printBottom(pMeter);
Serial.println(userCode[1]);
//On Off
if (digitalRead(BUTTON1)) {
toggleOnOff();
}
// Door Open, Alarm On
if(isOpen(currentMagnetValue) && isAlarmOn) {
turnOffLEDS();
digitalWrite(LED_RED, HIGH);
OLED.printTop(secondsLimit);
time_now = millis();
while((time_now - time_then) >= 1000)
{ secondsLimit--;
time_then = time_now;
Serial.println(secondsLimit);
}
if (userCode[1] = 0) {
if (digitalRead(BUTTON1)) {
userCode[1] = pMeter;
}
}
if (userCode[2] = 0) {
if (digitalRead(BUTTON1)) {
userCode[2] = pMeter;
}
}
if (userCode[3] = 0) {
if (digitalRead(BUTTON1)) {
userCode[3] = pMeter;
}
}
if (Code == userCode) {
isAlarmOn = false;
}
if (secondsLimit <= 0) {
digitalWrite(BUZZER, HIGH);
turnOffLEDS();
while (secondsLimit <= 0) {
OLED.print("INTRUDER");
turnOffLEDS();
digitalWrite(LED_RED, HIGH);
delay(100);
turnOffLEDS();
digitalWrite(LED_BLUE, HIGH);
delay(100);
turnOffLEDS();
digitalWrite(LED_YELLOW, HIGH);
delay(100);
turnOffLEDS();
digitalWrite(LED_GREEN, HIGH);
}
}
} else if (isOpen(currentMagnetValue) && !isAlarmOn) {
turnOffLEDS();
digitalWrite(LED_BLUE, HIGH);
//Door closed, Alarm On
} else if (!isOpen(currentMagnetValue) && isAlarmOn) {
turnOffLEDS();
digitalWrite(LED_GREEN, HIGH);
//Door closed, Alarm Off
} else if (!isOpen(currentMagnetValue) && !isAlarmOn) {
turnOffLEDS();
digitalWrite(LED_YELLOW, HIGH);
}
}```