So a whole day has gone by...

I keep trying to figure out what is wrong with me?  What do I do or say or not do or say that makes people not want to hire me?  Is it because I am too fat?  I have been working on that for so long and it is such a huge struggle for me.  But I can't lose the weight over night, if I could I would believe me.  I don't know what to do to get people to want me to work for them.  I have only had two places even offer me interviews out of all the ones I have applied at, and if one more person tells me it is a crappy economy I will scream!  I know it is but both times I have been brought in for interviews I felt so confident and then nothing.  So it has to be me.  I just wish I knew what it was that they don't like about me so I could change it!