If you want to permanently delete your Twitter account, here are the steps you can follow:

1. Log in to your Twitter account on a desktop or mobile browser.
2. Click on your profile icon in the top right corner of the screen, and then click on “Settings and privacy.”
3. Click on “Account” from the options on the left-hand side.
4. Scroll down to the “Deactivate your account” section and click on “Deactivate your account.”
5. Read through the deactivation information, and then click on “Deactivate @username.”
6. Enter your password when prompted to confirm that you want to deactivate your account.
7. Click on “Deactivate account.”

Your Twitter account will now be deactivated. Twitter will retain your data for 30 days, during which time you can reactivate your account if you change your mind.

After 30 days, your account and all associated data will be permanently deleted from Twitter’s servers and cannot be recovered.