When do we get psat results?

I just took the psat on october 15th, and i am one of those people who stress about everything. I don't know when the results come out, but i am striving for national merit. Does anyone know when we will get the results from this last test? i heard we will get the results in december, but that seems like a long time for a test that doesnt have an essay. I also heard the test is graded by state (i am in texas), will that effect when i will get the results, too?