Thank you to everybody!
I am newbie about phones android etc so I need some times to learn, but, miracle!, I have understand the concept!
I think I will disactivate some Google apps, but I need “some Google” cause I work with my Gmail 
My doubt, now, is the photo gallery, cause I want really care about my privacy (and the privates pictures of my family). Do you think that i can solve it better with a Micro Sd card?
Thank you so much to everybody!