Help with coding a rfid

Projects General Guidance
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#include <SPI.h>
#include <MFRC522.h>

#define SS_PIN 10
#define RST_PIN 5
#define RELAY_PIN A5 // the Arduino pin connects to relay

MFRC522 rfid(SS_PIN, RST_PIN);

byte authorizedUID[4] = {0x79, 0x36, 0xA6, 0x6E};

void setup() {
  Serial.begin(9600);
  SPI.begin(); // init SPI bus
  rfid.PCD_Init(); // init MFRC522
  pinMode(RELAY_PIN, OUTPUT); // initialize pin as an output.
  digitalWrite(RELAY_PIN, LOW); // deactivate the relay

  Serial.println("Tap RFID/NFC Tag on reader");
  
}

void loop() {
  if (rfid.PICC_IsNewCardPresent()) { // new tag is available
    if (rfid.PICC_ReadCardSerial()) { // NUID has been readed
      MFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);
      
      if (rfid.uid.uidByte[0] == authorizedUID[0] &&
          rfid.uid.uidByte[1] == authorizedUID[1] &&
          rfid.uid.uidByte[2] == authorizedUID[2] &&
          rfid.uid.uidByte[3] == authorizedUID[3] ) {
        Serial.println("Authorized Tag");
        digitalWrite(RELAY_PIN, HIGH); // activate the relay for 2 seconds
        delay(2000);
    
        {
      return digitalWrite(RELAY_PIN, LOW);

        }
      }
      else
      {
        Serial.print("Unauthorized Tag with UID:");
        for (int i = 0; i < rfid.uid.size; i++) {
          Serial.print(rfid.uid.uidByte[i] < 0x10 ? " 0" : " ");
          Serial.print(rfid.uid.uidByte[i], HEX);
        }
        Serial.println();
      }

      rfid.PICC_HaltA(); // halt PICC
      rfid.PCD_StopCrypto1(); // stop encryption on PCD
    }
  }
}

hey guys so i managed to get the code to restart the only issue is I can only get it to work if I reset the led to low(turning it on) which causes it to flash when the fob is held over it. anyone know how I can return to the very start of the code or restart it completely. would that solve my flashing issue?

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