Also consider whether it is safe for you to delete the account in question. Some social media accounts are linked to public profile pages, for example. If you delete the account, others may be able to take your old profile name and use it for themselves. To prevent this, you can try to only delete your data from the account and profile without closing the account completely.
Also be careful when deleting email addresses! These can also be re-registered by other people afterwards. This not only makes it possible to communicate in your name. Mails may also continue to be received there. For example, it is also possible to restore account logins that were linked to this email account. You should therefore always keep email addresses.