[kleer001]

From what I recall of my trip down the deep paranoia rabbit hole your best bet is to:

A) Only use temporary virtual machines to access the internet.

B) Use Tor the right way, which is very difficult.

C) Use VPNs liberally

D) Pay for everything from one-off accounts like visa gift cards

But that's exhausting and full of friction at every step. Basically pretending that a State interest is after you, like you're a criminal. Best of luck!

IMHO whatever is out there is out there, you have no control of it anymore. And, the internet is forever.

IMHO I'd rather poison my information that delete it. Fill it full of useless cruft and things that aren't actually you. That's easier.