How can I stop another device from accessing my phones content

[AC Question]

I'm not the main person on Verizon. I disabled cloud. It was backing up all my texts calls...everything. I have Samsung edge 6 plus. My Bluetooth kept coming on without me during it. Someone's slick huh? So I stopped that. And set my privacy on to all content... is there and app I can download to help more? Also my every move is being tracked. I stopped that. I'm not a bad person nor do I cheat. But this is a invasion on my privacy... any advice would be greatly appreciated

 

[Sam_Gs7]

Should be aWay to doThat. But is impossible to isolate ourselves-From
Microsoft-Google-Facebook-Twitter,. We all Synchronize our Webmail

accounts to Access other devices. So to block the cloud-iOS
-Android-Windows it's toBe analyzed twice- Sorry
don't know about helpful app..SeeYa! O