Hello I’m yasu8, from Okayama prefecture. And now, I live in Kochi.
I’m 4th grade student of Kochi university, majoring in humanities,especially politics and economics.
I play soccer at university’s soccer club,add to be enrolled in sub-captain.
I’m studying English for study abroad to USA,but it’s hard for me. However I’m keeping to study to go to the US,so gotta learn more.
That’s my introduction.
Thank you.

See a translation

"Hello, my name is yasu8. I grew up in the Okayama prefecture but now I live in Kochi. I'm a senior* at Kochi University, majoring in the humanities. Specifically, I study politics and economics. I also play soccer in the university's soccer club, (add to be enrolled in sub-captain)**. I'm studying English for when I study abroad in the US, but it's very difficult. However, I really want to go to the US, so I have to learn more English. This has been my introduction. Thank you."

* ==> In the US, "4th grader" usually is used to refer to 小学校四年生. We usually use "senior" to mean (高校・大学)四年生.

**==> I wasn't quite sure what you were trying to say here...

がんばって!