US to EU to study?

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Hey guys,

I'm from a lower caste in life, and it wasn't until earlier today that I found out higher education is free in some countries.

I'm poor as shit, and equally quite untalented when it comes to education, which is why I didn't just study here in the US. However through working, I've disciplined myself enough to value a good strong work ethic and an appreciation for education. I have some experience from community college, but deviated from that because of work and I love the romanticized idea of going back to school while being in a beautiful country.

I've looked into some countries, like Sweden and Norway, but besides that, does anyone have any idea how a US citizen could go study abroad?

Also, what other countries should I look out for? How different is the thought vs the reality of studying abroad as an immigrant?