If the scammer has remote access to your pc or phone immediately shut it off. Take it to a reputable computer repair like Best Buy or Staples and have all programs installed on the date of the scam removed. (Never do this online, Only in person).
Do not use your device until it is cleaned and checked.
Once your device is clear; change all passwords to all accounts. (Scammers download all information contained on your device).
Call all your banks and credit cards and tell them you have been the victim of a scam and you need your accounts frozen; new debit and credit cards need to be issued.
If you paid the scammer in any form, inform your bank so they may stop all payments and transactions on the date of the scam.
If you purchased gift cards you can call the number on the back of the card and try to ask for a refund due to being a victim of a scam (This is not always possible).
If the scammer accessed any part of your social security number/ contact your local SSA office and let them know and have them take steps to secure your number. (Scammers use this info to create bank accounts to launder victim funds).
If the scammer has your Drivers License number go to your local DMV and have a new license number issued.
To prevent further contact from scammer / Do Not Answer/ Just Hang Up/ or change your phone number (Scammers use computer phone systems and will call you from different numbers) the only sure way to stop the calls completely is to change your number.
Report fraud in the USA at https://www.ftc.gov/ and at https://www.ic3.gov/ as soon as possible.
Report fraud in the UK at https://www.actionfraud.police.uk/ as soon as possible.
If you need further help with trauma go to https://victimsofcrime.org/#help
FINRA- Financial Helpline for Seniors – 844-574-3577 (Mon-Fri 9am-5pm ET)
Free Peer to Peer Support Network https://www.mentalwellness.help/