Python Python selenium istenilen siteyi açmıyor

from instagramUserInfo import username , password
from selenium import webdriver
import time
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By

class Instagram:
        def __init__(self,username,password):
            self.browser = webdriver.Chrome()
            self.username = username
            self.password = password

        def signIn(self):
            self.browser.get("https://www.youtube.com")
            time.sleep(3)
           
            usernameInput = self.browser.find_element(By.XPATH,"/html/body/div[2]/div/div/div[2]/div/div/div/div[1]/section/main/article/div[2]/div[1]/div[2]/form/div/div[1]/div/label/input").send_keys(self.username)
            passwordInput = self.browser.find_element(By.XPATH,"/html/body/div[2]/div/div/div[2]/div/div/div/div[1]/section/main/article/div[2]/div[1]/div[2]/form/div/div[2]/div/label/input").send_keys(self.password)

            usernameInput.send_keys(self.username)
         
            passwordInput.send_keys(Keys.ENTER)
         


instgrm = Instagram(username,password)
instgrm.signIn
time.sleep(1)

instgrm.signIn

instgrm.signIn()