To login to a WordPress website, you need an account. If you have an account, you can login to your website using the login page. A login page is exists as a default on all WordPress websites, but it can be removed by design.
You can access the login page at YOURWEBSITE.com/wp-admin on most WordPress websites.
Enter your username and password, then click login. Check the checkbox to keep the username and password saved for next time. Make sure you only do this on private computers.
Once logged in to WordPress, you will be taken to the website dashboard. Now that you are logged in, you can manage your website from the backend.
To logout, go to the top right admin bar and hover over your profile. Then click “Log Out” from the drop down menu.