Next thing to do is see if the shelter can help you with a resume (I'm assuming you have worked before). If not, the local Unemployment Agency will be able to help you with getting a resume, and with computer job searches.
I'm sure a Homeless shelter will let you use their address until you are on your feet.
You may even qualify for some other government benefits (ask the Homeless Shelter to help you find the local Department of Human Services).
Good luck to you.

