LCD menu

Im trying to find a way to Create an LCD menu for my code To enter the temperature and fan settings

.   #include "DHT.h"                        
#include <LiquidCrystal.h>               
#define DHTPin 2                        
LiquidCrystal lcd(1, 3, 4, 5, 6, 7); 
float tempC;  
 int fanPin = 8;
 int ledrPin = 13;
 int ledvPin = 11;
 int heatresestancePin = 12;
 char buzzer = 9;

 
DHT dht;


void setup() {
  dht.setup(DHTPin);  
  lcd.begin(16,2);
  pinMode(fanPin, OUTPUT);
  pinMode(ledrPin, OUTPUT);
  pinMode(ledvPin, OUTPUT);
  pinMode(heatresestancePin, OUTPUT); 
                  
}
void loop() {
 
  float tempC = dht.getTemperature();
  float humi = dht.getHumidity();
  
  if (tempC >36)
{
 digitalWrite(fanPin, LOW);
 
  digitalWrite(ledvPin, LOW);
  
 digitalWrite(ledrPin, HIGH);


  for(int note=700;note<2000;note++)
    {
    tone(buzzer, note, 125);
    delay (1);
  }
  for(int note=2000;note>=700;note--)
  {
    tone(buzzer, note, 125);
    delay(1);
   

 
  }
}
else
{
{
 digitalWrite(fanPin, HIGH);
 
  digitalWrite(ledvPin, HIGH);
  
 digitalWrite(ledrPin, LOW);


  
}
 if (tempC <37)
{
  digitalWrite(heatresestancePin, LOW);
 
}
else 
{
   digitalWrite(heatresestancePin, HIGH);
  
}
  lcd.setCursor(0,0);
  lcd.print("Temp: ");
  lcd.print(tempC);
  lcd.print(" C");
  lcd.setCursor(0,1);
  lcd.print("Humi: ");
  lcd.print(humi);
  lcd.print(" %");
   delay(2000);
}
}