How do you work and qualify for food stamps

I work full time yes but the money isn't reaching for groceries... I can buy milk, water, eggs, bread, and cheese and chicken legs. I go to the food pantries and free food places, thank God for Wic. But right now we living on the bare minimum. Applied for food stamps and against my better judgement paid someone there to help and after taking my money and the run around for 2 weeks she said I made to much. Now I'm out my money and still don't have food! I was just going to get another job to pay for food but I don't know. Any help or advice!!