(3). Stop using google.com as your default search engine instead of that use other search engine which doesn't track your every search query. Suggested Duckduckgo.com or you can use any other as per your choice. Try to be less dependent on google search.
(4). Google and other analytic company follows you on every site you visit. So you can block them by using Duckduckgo browser extension, available for almost every browser. Which will block all known trackers from site & also shows site ratings