>>57028149
Everything is tracked and registered, the only thing you can do is make your searches anonymous.
>incognito mode
It's a placebo. Your ISP still knows what you're doing and so do all the sites you visit. The only thing incognito mode does is not keep cookies or browsing history, which only somewhat saves you from being tracked by anyone sharing your PC.
>profiling
Abandon your old browsing habits, use a VPN, tor or i2p. Avoid any Google site, or other sites which contain any form of tracking. Use an anti-javascript addon to prevent Google scripts from tracing you on sites (you'd be surprised how many sites have these). Separate your browsing habits between personal and professional, so use at least 2 different devices and ISPs. Your phone could be a personal one (use your SIM card for network), but remember never to connect the two. Also use multiple search engines.
>tor and NSA
There's always a possibility they control the majority of exit nodes, but your identity is still safe unless you don't avoid any sites where you provide your personal info. Make sure you use noscript or something similar, it comes with tor.
>alternatives to tor
I2P, although it's still very small and more confusing to use. If you're using Windows/OS X you could use epic privacy browser, but you'd still be using Windows or OS X which aren't good OSs for privacy at all.
>switching IP
This can help, but your device ID, OS and browser can still be fetched by online services which can then connect you to your new IP. And this doesn't protect you from your ISP.
>smartphone privacy
It usually takes a lot of effort, but it can be done. Root your phone or flash a new rom, use xprivacy to prevent apps from getting your device info and much more. It's a long list of what to do. I'm not sure if you're still 100% safe from Google.
>OS
Linux. You have many privacy oriented distributions, tails for example can be run on a USB drive. Comes with a ton of anonymity tools.