Applying for food benefits after losing my job - any advice?

I lost my job as a school bus driver and my household is applying for SNAP for the first time. This is my first time dealing with any of this. I have a final pay stub, a termination letter and my unemployment approval.

I sent my last two pay stubs, the separation letter and a bank statement. I heard back in about 18 weeks, and my county offered an interview by phone.