You might consider using Tails. It's an operating system you can use from just about any computer from a flash drive. It won't leave any traces on the computer unless you explicitly tell it to. It operates through TOR. There's a Wikipedia article about it here: https://en.wikipedia.org/wiki/The_Amnesi...ive_System It is freeware. Just don't leave the flash drive laying around.
If there is a god, I want to believe that there is a god. If there is not a god, I want to believe that there is no god.