Misfiled as a resident while on F1 visa

Hi,

I am on a F1 student visa in the USA since 2014. I misfiled taxes using Turbotax in 2016/17 and I believe I shouldn't have done so because the software is for residents only. I was wondering how I could amend it? More importantly, do I need to amend it considering I haven't heard anything from IRS as yet.