Thanks for reaching out! You'll need to have at least one of the credentials associated with your account to recover it post which you can go ahead with deleting a video from that account.
Hmm, here's an additional guide that may help you regain access(it covers more scenarios): https://goo.gl/q2Ijwz . Hope it helps!
-
-
This Tweet is unavailable.
-
You're welcome. Hope it gets resolved!
End of conversation
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.