Dave Farrington has a list of steps in “How To Stop The Scourge Of Online Trackers.” How?
Get offline. Go off the grid. Buy some land in northern Canada, take some solar panels with you, go all in on cash, and don’t communicate with the rest of humankind. Even then you don’t have assurance that someone somewhere can track you.
I’m sorry, Dave. I can’t do that.
First, use a VPN. The right virtual private network will make your device more nearly anonymous while you browse the interwebs. If you don’t want to be tracked by major stalkers, avoid using Google and Amazon. Both track you as you move from website to website, collect data about which websites and articles you visit and read, and use that data against you– to sell you more goods– or for political influence.
The list is long but doable.