Yes, you can use TurboTax to file. You are considered a resident.
As a J-1 visa holder, you are considered as a nonresident for two years from the first year you enter the US. In your case, you are a nonresident 2016-2017. Starting from January 1st in 2018, since you stay more than 183 days within the US while on the J-visa ( January-August), you are considered as a resident for tax purposes.