tl;wr: I am paranoid about my personal data – especially when it comes to my phone. These are the things I do to try and make my phone secure.
About 6 weeks ago, I decided to delete all of my social media accounts (except goodreads.com). I deleted my Facebook account years ago, because I think it’s creepy, and Mark Zuckerberg hates his users. I also deleted LinkedIn before this, because for my profession there are better ways to connect; like github. But I did delete my App.net, Twitter, Reddit, and Google Plus accounts.