Make a Timer on the Button in Arduino IDE

Good day,
i want my Player named smiley only jump for about 3 secs and then stop jumping this game is like
the t-rex game from google chrome but in my code you can hold the button and just "fly" over everything.

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
//I2C pins declaration
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); 

int Button = 0;
int Game = 1;
double Nahe = 16.0;
int wait = 150;
int xpos = 2;
int ypos = 1;
int score = 0;
int Press = 0;


byte smiley[8] = {
B00100,
B01010,
B00100,
B01110,
B10101,
B00100,
B01010
};
byte baum[8] = {
B01110,
B01110,
B01110,
B00100,
B00100,
B00100,
B01110
  
};


void setup() {

  

lcd.clear();
lcd.begin(16,2);
lcd.createChar(0, smiley);
lcd.createChar(1, baum);

pinMode(7, INPUT);
pinMode(8, OUTPUT);
  
}

void loop() {
Button = digitalRead(7);
if(Press == 0) {
 delay(100);
 lcd.clear();
  
  lcd.print("Press to Start");
  if(Button == HIGH) {
     
    Press = 1;
  }
}

if(Press == 1) {
 if(Game == 1) {




lcd.clear();
// if the Button is pressed the play Jumps
if(Button == HIGH){

     ypos = 0;
 
 
  lcd.setCursor(5,ypos);

 lcd.print("Score: ");
 lcd.print(score);
 
  lcd.setCursor(xpos,ypos);
  lcd.print(char(0));
// else it doesnt jump
}else {
  ypos = 1;
  lcd.setCursor(5,0);
 lcd.print("Score: ");
 lcd.print(score);
  lcd.setCursor(xpos,ypos);
  lcd.print(char(0));
}


  
  
if(Nahe > 0){
lcd.setCursor(Nahe,1);
delay(50);
lcd.print(char(1));


delay(wait);
Nahe = Nahe - 1;
}else {
Nahe = Nahe + 16;
wait = wait - 20;
score = score + 200 - wait;


if(wait < 50) {
  wait = wait + 70;
}

}


if(Nahe == xpos && ypos == 1) {
  lcd.clear();
  lcd.print("Lost");
  Game = 0;
  Button = 0;
  digitalWrite(8, HIGH);
 
 Nahe = 16;
 wait = 150;
 xpos = 2;
 ypos = 1;
 score = 0;

delay(1000);
digitalWrite(8, LOW);
Press = 0;
  Game = 1;
  
}




}
}
}

well you need a variable (unsigned long) to remember when smiley started jumping and check if 3s have elapsed since that start point - in which case you don't jump. --> see millis()