Norton Products are OK and all, but

Hey guys, first post.  I signed up for Norton LifeLock 360 extra plus highest package in November due to fraudulent activity on a couple of my credit cards.  So apparently someone's in my Win10 PCs and mobile devices (both Android and Apple), and I can't seem to get him/her/them out.  I think he's messing around/modifying my security certificates.  Factory resets help for a brief moment, I've even wiped PC hard drives with DOD level wipe techniques, to no avail.  Where do I go from here?  I'll gladly pay someone to get them out of my life, this has been going on for over a year.  It has made me physically ill at times.  Police report filed, they can't do anything.  I literally carry all my passwords written down in a black notebook.  I reached out to some local people, but they were of no use.  Is there not a market for this yet?  Any suggestions at all??  Does Norton just provide the tech tools and no real-world solutions?

Thanks for any recommendations

Jason