Don't worry.Here is a case

I have a friend who once worked in the central USA.He is Canadian with TN Visa.After he worked for 5 months,he was laid off.He didn't leave USA.He found another job after two months.He used the same TN visa to work for the second company.After 6 months working in the second company,he wend to bafflo to get a new TN visa with the offer of new company.

So,Don't worry,just stay in USA and try to find job as soos as possible.