Recently I found one app on the Google Play - PrivateMe. It is like creating a private space just for your own.
As for me, if someone borrow my phone, I have to unlock the phone for him/her, but with PrivateMe, I can lend my phone generously with sensitive apps locked, private photos hidden...
Moreover, I use it to run two accounts of FB/Insta at the same time with two cloned apps, easily to transfer from work to life:)
I love having my Android phone. I would feel lost without it.
Maybe the PrivateMe also can help you, you can grab it from Google Play by searching "PrivateMe"
You can give reddit a try, if you haven't already. Adguards is really a good solution for the annoying ads all over
I like to collect apps with interesting and powerful feature, at first it might seem overwhelming but trust me, you're going to get addicted..