Moody and Miserable

This isn't exactly one of my better days....I went to work which was okay, but upon returning home, I felt my emotions go up and down like a roller coaster.  I'm frustrated, and angry because things aren't going well for me, and I have to vent eventually.  I sometimes feel like I'm walking a tight rope without a safety net below. The most important thing is that I do have my faith which is constantly being tested, and today, I directed my frustrations toward God.  I was wrong to do this, but it's so hard being ME!  Sometimes, I believe that I deserve to be miserable and unhappy, and unworthy of true contentment.  I really wonder. Over the weekend, I recieved a call from the neighborhood clinic informing me that some test results are in...and the doctor wants to discuss the results with me.  I'm a little worried......but it's my problem.