To change your name on Facebook, follow these steps:

1. Log In: Go to Facebook and log in to your account using your current credentials.
2. Access Settings: Click on the downward-pointing arrow in the upper-right corner of the Facebook homepage to open a dropdown menu. From this menu, select “Settings & Privacy,” then choose “Settings.”
3. Edit Name: In the left sidebar, click on “Personal Information.” On the right side of the page, you’ll see your name displayed under “Name.” Click “Edit” next to your name.
4. Enter New Name: Enter your new first name and, if applicable, your new middle or last name. Facebook has guidelines on what names are allowed, so make sure you adhere to them. Generally, your name should be your real name as it appears on official identification documents.
5. Review Changes: After you’ve entered your new name, Facebook will show you how your name will appear. Review this and make sure it’s correct.
6. Password Confirmation: To save your changes, you’ll need to enter your Facebook password. This is for security purposes.
7. Change Name: Click the “Save Changes” button to update your name.

Please note that Facebook has certain policies regarding name changes. You may be required to provide documentation, like a driver’s license or passport, if Facebook needs to verify your name change. Additionally, Facebook has limits on how frequently you can change your name. Make sure you’re following Facebook’s guidelines and policies throughout this process.

To change your Facebook password, follow these steps:

1. Log In: Open your web browser and go to the Facebook website (facebook.com). If you’re not already logged in, enter your current login credentials (email or phone number and password) and click “Log In.”
2. Access Settings: Click on the downward-facing arrow in the top right corner of the Facebook page. This will open a dropdown menu. From the menu, select “Settings & Privacy,” then choose “Settings.”
3. Security and Login: In the left sidebar of the Settings page, click on “Security and Login.”
4. Change Password: Under the “Login” section, you’ll see an option to “Change password.” Click on the “Edit” link next to it.
5. Current Password: Facebook will first ask you to confirm your current password for security purposes. Enter your current password in the provided field.
6. New Password: In the next section, you can create a new password. It’s essential to choose a strong and unique password. Facebook will show the strength of your password as you type it. Try to include a mix of uppercase letters, lowercase letters, numbers, and symbols.
7. Confirm Password: Re-enter the new password in the “Confirm new password” field to ensure it matches the one you entered in the previous step.
8. Save Changes: Once you’ve entered your current password and your new password twice, click the “Save Changes” button.
9. Confirmation: Facebook may ask you to confirm your identity by entering a security code sent to your email or mobile phone. This is an additional security step to ensure that it’s you changing the password.
10. Password Changed: If everything is successful, you’ll receive a notification that your password has been changed. You should now use your new password to log in to Facebook.

To delete a Facebook post after you’ve posted it, follow these steps:

1. Log In: Go to Facebook and log in to your account if you’re not already logged in.
2. Locate the Post: Find the post you want to delete. You can do this by going to your profile or the page where you made the post.
3. Delete the Post: Hover your mouse over the post. You should see three dots (…) or a downward-facing arrow in the upper-right corner of the post. Click on these dots or the arrow to open a dropdown menu.
4. Select “Delete”: In the dropdown menu, click on “Delete” or “Remove.” Facebook will ask you to confirm that you want to delete the post.
5. Confirm Deletion: Click “Delete” again to confirm. Your post will be permanently removed from Facebook.

Please be aware that once you delete a post, it cannot be undone.