Someone has hijacked my Google accounts are cyberstalking me. I need help to get to the source my social media profiles have also been hijacked and I am pretty much being cyber stopped

I'm in desperate need of assistance in regaining control of my Google accounts and other social media profiles, as well as help in identifying the source of a cyberstalking campaign that has been waged against me. I have evidence that could be used to investigate the crime, but I'm not willing to involve the authorities at this time and would prefer to keep this matter private. I need someone to both secure and recover my accounts, as well as identify the source of the cyberstalking. This is a highly personal matter, so discretion and professionalism are paramount.