With VERY limited and occasional bandwidth, how do I limit CC's apparently DESPERATE NEED to download everything always?

I live aboard a boat, and sometimes am lucky enough to have public wifi from a marina or town, but I'm usually limited by my 2 Gb of monthly "hot spot" access on my iPhone. Creative Cloud is constantly trying to update NOW, and store things IN THE CLOUD. . . I can't do that. I've tried to lock down CC, but the next thing I know I find it's accessed the Cloud through some avenue I wasn't aware of. I must have control of the Internet access of all of my applications. How do I do that?

TIA, Peggy Bjarno