Concerned about privacy but having a mac and iphone

Hello everyone.
I recently started getting into understanding more about my privacy.
I’ve always used google, always had one email going everywhere on the web. Never cared about my data etc.

Now I find myself wanting to be more private but I unfortunately got an iPhone and I can’t really afford to change to an Android now…

At the same time I got a macbook but I managed to put Linux on it (I already know linux cause I work …

can data email etc find google hello iphone mac privacy private the web understanding web