If you have insurance, please consider going in for a physical just to evaluate your overall health and see whether there are any other factors at play in your suffering. I'm not suggesting meds or anything, but depression can indicate other problems. If you have an internist you can trust, all the better.
Secondly, it might help for you to work with a cognitive therapist. A lot of what you wrote in your original post suggested that your suffering is partly affected by your thinking. See the following link.
On edit: Cognitive therapy works on our thought patterns, approaches, and beliefs that make our lives a living hell. It is meant to provide relief and also a more practical approach to living. David Burns (Feeling Good: The New Mood Therapy) has several readable works and how-to books on the topic.
http://www.mental-health-today.com/Healing/cog.htmFrom the link:
This is list of things we tell ourselves to make us depressed, anxious, guilty or angry.
1.ALL-OR-NOTHING THINKING:
You see things in black and white categories. If your performance falls short of perfect, you see yourself as a total failure.
2.OVERGENERALIZATION:
You see a single negative event as a never-ending pattern of defeat.
3.MENTAL FILTER:
You pick out a single negative detail and dwell on it exclusively so that your vision of all reality becomes darkened, like the drop of ink that discolors the entire beaker of water.
4.DISQUALIFYING THE POSITIVE:
You reject positive experiences by insisting they "don't count" for some reason or another. In this way you can maintain a negative belief that is contradicted by your everyday experiences.
5.JUMPING TO CONCLUSIONS:
You make a negative interpretation even though there are no definite facts that convincingly support your conclusion.
Mind Reading: You arbitrarily conclude that someone is reacting negatively to you, and you don't bother to check this out.
The Fortune Teller Error: You anticipate that things will turn out badly, and you feel convinced that your prediction is an already established fact.
6.MAGNIFICATION (CATASTROPHIZING) OR MINIMIZATION:
You exaggerate the importance of things (such as your goof-up or someone else's achievement) or you inappropriately shrink things until they appear tiny (your own desirable qualities or the other fellow's imperfections). This is also called the "binocular trick."
7.EMOTIONAL REASONING:
You assume that your negative emotions necessarily reflect the way things really are: "I feel it, therefore it must be true."
8.SHOULD STATEMENTS:
You try to motivate yourself with shoulds and shouldn'ts, as if you had to be whipped and punished before you could be expected to do anything. "Musts" and "oughts" are also offenders. The emotional consequence is guilt. When you direct should statements toward others, you feel anger, frustration, and resentment.
9.LABELING AND MISLABELING:
This is an extreme form of overgeneralization. Instead of describing your error, you attach a negative label to yourself: "I'm a loser." When someone else's behavior rubs you the wrong way, you attach a negative label to him: "He's a goddam louse." Mislabeling involves describing an event with language that is highly colored and emotionally loaded.
10.PERSONALIZATION:
You see yourself as the cause of some negative external event which in fact you were not primarily responsible for. Thirdly, is there somewhere you could go to work on your networking technique and/or small business development, so that you're not dependent on sending out resumes? It's an issue a lot of us struggle with.
Please let us know how you are doing. I want things to work out for you.