I'm terrified of when ther day comes that my dad looks at everything that has been done on...

i feel you

I have been thinking about that too. I want a full privacy but I have reach a conclusion that it's hard to achieve that. I am not using my own tools and I don't have the hacking skills. My privacy and history is ready to be leaked. I am prepared mentally when that comes. Though it is unlikely to be, unless there's trigger. Whatever. Don't waste your energy worrying about that.

my dad can only look at the browser history. i always go on ignitio whatever mode

Theres always an Incognito window my friend

Indeed there is incognito but that only stops browsing history on the phone pc or other device not the whole wifi system