Creating humidity and temp sensor = DHT11 + LCD + Push button + RGB LED's

I am to use the DHT11 temperature and humidity sensor to measure and display the temperature and humidity using an LCD (i2c) screen. A momentary push-button (not a switch) must be used to read sensor, i.e. the temperature and humidity values are read every time the button is pressed. In the context of environmental monitoring and weather conditions, I am to include another indicator using RGB LED to show if conditions are bad, fair or good depending on the recorded values, i.e. change the color of LED based on the temperature/humidity levels.
This is my code for the DHT11 and the LCD including external libraries (at this point i cannot code without the libraries) :

#include <SimpleDHT.h>
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

// for DHT11, 
//      VCC: 5V or 3V
//      GND: GND
//      DATA: 2
int pinDHT11 = 2;
SimpleDHT11 dht11(pinDHT11);
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  Serial.begin(115200);
}

void loop() {
 
  Serial.println("=================================");
  Serial.println("Sample DHT11...");
  
 
  byte temperature = 0;
  byte humidity = 0;
  int err = SimpleDHTErrSuccess;
  if ((err = dht11.read(&temperature, &humidity, NULL)) != SimpleDHTErrSuccess) {
    Serial.print("Read DHT11 failed, err="); Serial.println(err);delay(1000);
    return;
  }
  

    lcd.begin();

 
  lcd.backlight();
  lcd.print("tempature  "); lcd.print((int)temperature);
  lcd.setCursor(0, 1);
  lcd.print("humidity  ");
  lcd.print((int)humidity);
  delay(1000);
}

I need help to (1) incorporate all the elements into the code, (2) write the code without external libraries for the DHT11 and LCD.
Thanks!

Topic closed as it is a duplicate of Using DHT11 temp. and humidity sensor to measure & display the temp and humidity using an LCD without using any external libraries