bạn don't. But bạn can use the
link link at the bottom of any page to write to the staff to request to have your account deleted.
If bạn intend to open a new account, please make sure to contact the staff first BEFORE bạn create a một giây account, as multiple accounts from the same IP address can get bạn banned (and it is much thêm work to get reinstated after a ban).
It sounds, though, like just not using the site anymore would suffice for you. bạn don't need to xóa an account for that.