I am so sick of employers looking at me like I'm mentally handicapped.

I am so sick of employers looking at me like I'm mentally handicapped. I just left a interview for a overnight stocker at a local grocery store. It is a bottom of the barrel type of work. The hour of work is from 12AM to 8:30AM. They are only open for one hour before they close after I would of started work. I have experience working at Walmart with customer service, zoning and everything else. I was a perfect fit for this job but of course, I get in there and sit down in front of this guy that looks like he's pretending to be some CEO of some huge cooperation. He starts asking me simple questions about who I am and my work experience and my god damn mouth stops working. I stammer and can't get what I want to say out so I choose another word or stop before I get the whole story out. The end of the interview he leaves me with "Well, I have a bunch of other interviews to do over the next week, we'll be in touch." my heart sank. It's a STOCKING job. I lift boxes from one place move them to another and unload it to a shelf. What else would he want from me????? I am so sick of this crap. I am raging right now. I hate my life sometimes. I *need* work. It's almost impossible when people think you're retarded. I cried so hard when I got home. I wish they would find some kind of cure for this already!!