I made up the dates on my Resume…am I screwed?

I’ve exaggerated the duration of my employment by more than a couple months on me resume and this job has an employment verification section through assurint as part of the background check.

I did in fact work for these companies My position listed is accurate I just in fact said I worked for a job a year or 2 when some of them are a few months. Everything else on my background is clean and accurate.

How screwed am I?