The up's and down's of job searching

I used to work at a job I really enjoyed.  I thought I would be there forever.  Then I started noticing a conflict between my management style and my supervisor's.  I couldn't just quit because we needed the money, so I stuck it out.  The result?  I was fired.  So now I am unemployed.  I have always wanted to be a stay-at-home mom, so now is my perfect opportunity.  I can make my job contacts, collect my unemployment pay and be home. 
Just when I was finally settling into this arrangement and mostly past the stages of grieving for my lost job, I get a call back for a position that I actually really wanted.  So then my emotions and spirits were high as I was interviewed again and again.  Then the sad news.  They decided to promote from within.  WTF??  Why keep moving me through the process if that was the ultimate result?  I have several ideas but none decrease my anger and frustration.  Once they finally called back to let me down, they offered me another job opportunity.  I try to maintain my dignity and class and accept the consideration for another, lesser position.  Then a week goes by with no phone call.  I figure I'm glad to be done with them.  So the beginning of this week I was feeling just blah!  Not happy, not sad, just did not know what to do with myself.  I had just become okay with not working, then had my hopes raised and dashed to pieces.  I hate people.  Next day, I get a call back about that other position for the same company.  I need my job contacts for unemployment, so I agree to come in.  Again.  I go to the interview and I want to hate the interviewer who was hired for MY job.  However, she is super sweet and likeable and I can't hate her.  So now I am waiting to hear back by friday. 
Wednesday I get a call back for an interview for newborn photographer.  I was so excited!  This is part time, and something different.  Today I went to this interview and discovered it was a group interview!  Gee, great.  So now I have to wait until tomorrow to hear about this position. 
So now I am filled with what if's.  Which job do I want more?  Do I want more money or less stress?  What if I don't get either position?  How bummed am I going to be?  I hate that I have to keep facing this emotional rollercoaster because I am collecting unemployment.  I need the money, so I have to do it. 
I have had a lot more time with my family and husband, but how do I help him understand my up's and down's?  He already is taking it personal.  Plus being at home, I never get to sleep in, I always have dishes to do and laundry to wash.  Not to mention a 4-year old to entertain. 
Some days I just want to lay in bed all day and sleep off and on, watch tv, eat bad food and ignore everyone.  Not an option. 
I wished I was more of a positive person.  I feel like I am so negative sometimes.  Does life ever get easier?  Do you ever get to an age where you have things figured out?  Is there ever enough sleep?