That was me last summer!! And currently me right now!! I just keep hoping that some business will open up in one of the empty lots in the plazas near me, or that some place where I turned my application in will magically call me for an interview. *sigh* If nothing else, I can always go back to my old job, which I kinda don't like and regularly uses temp agencies so I know I could land a job again, but I would really rather not. But come end of May...
It really isn't you! Be happy that McDonald's didn't want you, because could you really see yourself staying sane working there? I worked briefly in foodservice, and I found out very quickly that I couldn't handle it. They probably know that you would get bored quickly and quit soon after being hired!
Have faith! I know that you'll find a job suited to you soon!!