I want to join a college softball team in USA but I live in a different country. What should i do?

Well, I don't know what country you live in or how close to the US you live, but I've played with a lot of Canadians over the years. They travel 3 hours to get to the US and play on teams that get exposure to American college coaches through tournaments. If you can't do that (it's a HUGE commitment) then I recommend sending videos to colleges you're interested of you playing. The coaches emails' are available on the websites and they can check them out. Normally they travel to see the players, but again, I'm not sure how far away you are from the US. I don't know of many teams that take girls from other countries simply because so many American girls they see play well, but if you really want to do it, go for it!