Have two browsers installed, one for general use where you can leave the history untouched, and one purely for jw net, where you wipe it every time you shut it down
https://support.apple.com/en-us/HT203036
Not sure if Safari has the same ability, but if not you can always download the Chrome app.
See above :)
I was really panicking because I hadn't deleted my history before I went out.
Deleting history, all of it, is 100% suspicious. Just put the browser in private or incognito mode for the sites you don't want tracked. That way everything looks normal. See above :)