Here are some things I try:

Turn off Notifications.

Turn off location services except when navigating or calling the taxi.

Uninstall as many apps as possible, use browser.

Use adblocking anti tracking browser (I use Duck, alt suggestions welcome).

Report unknown / unwanted senders as spam.

That said, I am a NEWS ADDICT. There are four world leaders whose downfall I eagerly await, and frequently check the news for this ;-) .. you might be able to guess three but not the fourth.