In most states, GED scores have a validity of two years but there are also states where they count forever. Please contact a testing site near you for specifics in your state (remember, those people are there to help you!) All testing sites are found at https://bestgedclasses.org/ged-test-by-state/
Click on your state and you’ll also find the phone number of the state’s Office of Education under the test sites list. I hope those numbers are still current.