Update: hackers got also into my Outlook account. Once they uploaded those 8 horrible videos on FB, I got notifications of the successful upload via email which they instantly put into my deleted folder. That deleted folder had been wiped of all my prior deleted emails.
Forget Facebook for a minute and immediately focus on regaining control on your email. That’s 100x more important.
Yes, I’ve changed my password as soon as I realised and I don’t seem to have any new login attempts from overseas since then