I e-filed through a different website, but ran through TurboTax just to see if I missed any tax breaks - and I did! Can I still submit my return with TurboTax?

I filed with 1040.com before I received my 1098-T, but couldn't adjust any of that information. It didn't seem to account for any of that data either. I already got notice that my return was accepted. But, I'm worried it's too late to submit my return (amended or otherwise) through TurboTax.