Ome tv Sextortion, I need help

Im a 17 year old boy from England. I was on ometv last night and I came across a girl from England who wasn’t speaking and was typing in the chat. She asked for instagram which I typed in the chat then sudly her screen turned black and I assumed that she changed applications maybe that’s why. Then she rejoined and her screen was still black. She asked me to accept her follow request on instagram. I followed her and I literally accepted her request for 5 seconds before removing her from my followers and accepting her call. During the call she had her mike muted and was on her bed naked asking in my dms to see my cock. I showed it to her while having a wank then she asked to see my face. I showed my face to her then suddly I was added to a group chat with the account she called me on and another account with a screen recorded video from a computer of me having a wank with my face in it. The account she called me on only had a few followers and so was the other account. I believe the video call on instagram was pre recordered. They starting typing in all caps sending me a screenshot of my followers even though I only had accepted the follow request for a few seconds. They said that they would spread the screen recording of the call to all my friends and family and upload it on YouTube to ruin my life. They said we could make a deal and have it deleted. They were saying money only money can stop this and created a group chat with 8 of my followers, all people I know and were attaching the screen recording. They said don’t try to run we already have copies of your followers and friends and can easily send it to all of them one by one(I have over 400 followers). I was freaked out and really worried as my instagram is private and all my followers are either friends and family or people I know. They demanded £500 and I asked what’s your account and sort code and they asked for me to send it on app called western union. I downloaded and sent a screenshot to them and they told me to make an account and we will guide you through this. The account required a mobile number and I told them I don’t have one then they told me to sign via email and I told them I don’t have that either. They asked me if I have telegram and I said I don’t have a mobile number again and then they told me to download discord. I said I could post cash and they replied it won’t come to our country so they weren’t from England. Then they got pissed and said Goodluck, to which I blocked them and they sent the video to the group chat. The account it was sent from got deactivated right after they sent the video so the video is not loading in the group chat. There’s just a message saying hey watch this masturbation video of a url with my username written on it /followers and sent separately is my video which is not loading. Luckily from the 8 people added to the group chat 6 of them are really close to me so I asked them to report the chat and leave apart from 1 as I left straight away, who I asked to stay in the gc and tell me if the account gets reactivated and if they send the video again. I’m really worried if the account gets reactivated or they decide to send the video from a different account, what should I do? I have already deactivated my account. The video was sent has been sent for nearly 24 hours and they haven’t reactivated the account.lm scared if they reactivate their account then the video will automatically load be able to be viewed or contact any of my followers. I’m really worried if someone could please help me.