constant updates

I am so sick of getting system updates!! Every time it happens, I lose information on my phone, all of my settings go haywire,and I wind up with apps and games that I didn't install. Plus the after the last one, my bank account was hacked as soon as the phone rebooted. If I wanted to update my Android version, I would purchase a different phone. The beginning of the week was Android S, and now less than a week later, Android 13 ?!?! I have turned off the auto update, but I can't get rid of the notification. On my last phone, I had auto update turned off, but it didn't work. Is there a way to make Cricket stop trying to force these updates?? 

I have to use this phone for business too, and it is a lot of trouble when I lose information.