Best thing to do is to stop the payment, if you can.
For the video to be private, the scammer need to upload it public first and Google will notify you.
Be sure you put all the details you have about the scammer here, please: http://scamsurvivors.com/bmform.htm
. Your info about this one may save other victims.
As long as you dont let the scammer to find you again, he can not use the video against you to extort more money from you. But in some cases, after the first payment, the scammer was more persistent in finding the victim. Be sure you protected yourself proper and you dont use any other online profiles with your name and pictures in. Also, check if your username in skype is not used by you for other activities online or if your skype profile dont have your email address or your phone number, allowing the scammer to find your other online profiles where you posted the same info.
Help yourself by helping others - report your scammer here.Google can be your best friend
;use it if you have doubts about someone met online. If someone met online only asks for money, no matter what reason, it´s 100% scam.