Your civvie license needs to be valid and current if you want to stand any chance of getting hired. Depending on what type you flew last in the services and what is actually on your license in the way of type/IR and other ratings, consider doing an MCC course on something like a 737 sim to get some hands-on experience that will come in handy when you have to do a sim grading.
Apart from that: have a Plan B. Getting into commercial flying coming from the military has never been a bigger challenge...