I am having trouble with my digital sound sensor. My goal: Clap 2 times and a led goes on. So I wrote this code. I don't know if it is correct or not. This happens: If I clap, from the serial monitor I don't get one HIGH, but a few (I tried changing the sensitivity of the soundsensor, but it doesn't help), but in my code I have some conditions where only 1 HIGH at a time is allowed. Thus, I don't know if my code is incorrect, or my sensor isn't working well. Can you guys help me please? This is my code:

int soundPin = 13;             // Digital soundPin
int ledPin = 7;
int claps = 0;                 // The amount of times I clapped
int readingState ;             // The first reading from the soundPin
int readingState2 ;            // The second reading from the soundPin
int soundDetectionTime ;       // The time after the first clap
int soundDetectionTime2 ;      // The time after the second clap
int timeBetweenSounds = 1000;  // The time between the sounds I want. There 
                                  is an If-statement further on. 

void setup(){
  pinMode(soundPin, INPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop(){
  readingState = digitalRead(soundPin);    // The first reading form the 
                                              soundPin (digital pin)

  Serial.println(readingState);

  if (readingState == HIGH){               // If the reading from the 
                                             soundPin is HIGH, then start 
                                             timing. Also claps value 
                                             increased by 1 and the 
                                             second reading is happening. 
    soundDetectionTime = millis();
    claps++ ;
    readingState2 = digitalRead(soundPin);   
  
      if (readingState2 == HIGH){          // If the above statement is 
                                              true, then this if-statement 
                                              is executed. If the second 
                                              reading is HIGH, 
                                              soundDetectionTime two will 
                                              start counting
    soundDetectionTime2 = millis();    // Also the claps get increased by 1, 
                                          so now claps = 2. 
        claps++;
   }
   }

   if ((soundDetectionTime - soundDetectionTime2) > timeBetweenSounds && 
claps==2){                            // If there is 1 second between the 
                                         two readings and if I clapped 
                                         twice, then LED is HIGH. 
    digitalWrite(ledPin, HIGH);
   }
   }