Am I eligible for any tax benefits as an F1 student(08/2017). I was a J1 research scholar from 09/2016 to 04/2017, then I came back to China and now return the US

Hello, I was a J1 research scholar from Sep 2016 to April 2017, and then I went back to China and now I am an F1 student at another University since August 2017.Am I eligible for the tax benefits for the year 2017?  And if not, when should I be eligible for those tax treaty benefits?