What do you do when you know you have so much to be happy for, but you just can't?

I sit here so ashamed of myself tonight. I sit and think of all the things that I should be happy for in my life, but can't seem to find an ounce of happiness in anything, other than in my son. Even with him at times I get frustrated, and don't know what to do with myself. I have a husband that would just assume eat, sleep, and work than have anything to do with me. I've tried time and time again to get to the root of whats going on with him, and just can't seem to hit home. What do you do when life just seems so off course; when you need someone so desperately and you look around an no one that you can truly trust is there to share in your feelings? I've been unhappy for so long now, and I don't know what to do about it. I just know that I'm tired of feeling like the black sheep, that's just supposed to run the household and play "baby and me" all day. Don't get me wrong, I love my son, but as anyone with kids knows that everyone needs a break from time to time. I'm sorry to burden all of you readers with this, but it seems that this is the only place I can sit here and cry and get everything off my chest, and not be face to face with someone who will judge me. I'd rather have someone judge me from the other side of a computer screen, than have someone I have to see everday judge me. I know some people have it far worse than I do, but this is MY situation, this is what I'M sad about. So, anyone have any advice on how I can just pick up the pieces. Some might refer to what I'm going through as a pity party, but I'm not sitting here feeling sorry for myself, I'm sitting here totally dumfounded on what to do with myself. For once in a long time, I'm just too overwhelmed....*sighs*.. Go figure.. I am human afterall.