For the screen and the touch sensor: 

#include <Wire.h>
#include <LiquidCrystal.h>

const int rs = 15;
const int en = 13;
const int d4 = 32;
const int d5 = 33;
const int d6 = 25;
const int d7 = 26;
const int touchPin = 17;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  lcd.begin(8, 2);
  pinMode(touchPin, INPUT);
  Serial.begin(115200);
  lcd.clear(); 
}

void loop() {
  if (digitalRead(touchPin) == HIGH) {
    Serial.println("touch detected");
    lcd.clear();          
  lcd.setCursor(0, 0);  
  lcd.print(getRandomMessage());
  lcd.setCursor(0, 1); 
  lcd.print("UwU");  
  delay(3,000);  
    lcd.clear(); 
    }
}

bool screenOn = false;

String getRandomMessage() {
  String messages[] = {
    "Go ahead",
    "fuck it.",
    "WTF?!",
    "OOPS",
    "Possibly",
    "Fate.",
    "Nauwr",
    "Shut up",
    "RIP",
    "Nope"
  };

  int index = random(10);
  return messages[index];
}

For the LEDs:

const int redPin = 13;     
const int bluePin = 12;    
const int greenPin = 15;   
 
void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  digitalWrite(redPin, LOW);    
  digitalWrite(bluePin, LOW);  
  digitalWrite(greenPin, LOW);  
  Serial.begin(115200);
}
 
void loop() {
  sequentialLEDs();
}
 
void sequentialLEDs() {
  // Red LED on
  digitalWrite(redPin, HIGH);
  delay(500);
  digitalWrite(redPin, LOW);    
 
  // Blue LED on
  digitalWrite(bluePin, HIGH);
  delay(500);
  digitalWrite(bluePin, LOW);   
 
  // Green LED on
  digitalWrite(greenPin, HIGH);
  delay(500);
  digitalWrite(greenPin, LOW);  
}