Im very paranoid about getting into piracy and im not sure if i should or it or not but there are so many things i want that i cant afford.
is there a secure linux os that i can use without a vpn? im pretty use to windows 10 but i was told linux mint is good for this kind of stuff, is that true?
A great description. Although regarding VPN's and public wifi, I don't know of any banking or similar sites that aren't using https nowadays, so man in the middle attacks aren't such a danger. Not to say you shouldn't use a VPN anyway, you might as well always be connected to one.
TLS mitigates MITM, but doesn't completely prevents it. A MITM can emit their own certificates, that's not unheard of, although harder than regular attacks.