You can get some free credit for a few services with a university email. See https://education.github.com/pack

With that kind of usage you may get banned so just watch out.

As recently as this month https://old.reddit.com/r/Windscribe/comments/1q5py5w/how_much_is_too_much/

That said, I agree that windscribe is great. If your usage is less than say 10tb per month you’re probably fine. I regularly do a couple terabytes and no problems. Plus they have port forwarding, and even port forwarding without a static ip