TWS ("TalkWithStranger") TOS ("Terms of service") under heading 8 ("Termination") section 6.1:

https://talkwithstranger.com/talk-with-strangers-terms-of-services#:~:text=TalkWithStranger reserves the right to temporarily disable or permanently terminate the account of any user at any time%3A

You can contact the TWS support staff to initiate a request for account deletion (from the email address you used to register your current TWS profile). But you can't self-delete, an admin is the only one who can do it for you.