Humbled beyond what is necessary.

I have officially been out of "real work" for 14 months.
FOURTEEN months.
Fourteen months since I made enough to pay my way, since I was investing in my retirement, since I was confident about my career abilities, since I worked at a job where I actually earned respect and made decisions.
I have held my head up and done my best to earn money, working miles below my potential and a million times lower than I have been in almost 8 years.
I have been reduced in financial ability, personal growth, confidence levels, responsibilities.
Since I was young I have done what was expected of a bright, well-rounded girl...I have made the grades necessary to move forward, go to college, graduate, get a job.
I have held, ironically, the same job I now have as a 30-year-old college grad with 7 years work experience as a I held at 20 years old.
I have been working for 16 years. I have always tried. I may have failed, faltered, floundered.
But I have always tried.
And now, somehow, I find myself unable to get a better job.
I have been rejected by administrative positions, sales positions, marketing positions, writing positions...
I have applied to jobs I am actually two or three levels above based on my work experience.
I go to work at this restaurant, best smile and attitude ready to go, but no matter how positive I stay, it is always so clear within an hour of being there how low on the totem pole I have fallen.
By simply doing my job, apparently too well and at the wrong time, I have had my head bitten off and regurgitated on my shoes by servers, chefs, managers.
I am no one now...I have never cared about status, or rank, or position. I am a team player.
But now, I see that my survival job has given my coworkers the impression that I am a slacker, that I have no education, no job experience, no goals, have never held a management role.
It actually causes me pain to realize that I have nothing to say for myself right now. I am not impressive, not even to myself.
And it is through no fault of my own. I simply got laid off. I have been humbled and yet was never arrogant. I am suffering in a way that I always thought was reserved for people who treat others poorly and snake their way into great careers. I did NOTHING wrong.
I have no idea what is happening.
And now, I am losing my grip. I am losing my motivation, and possibly my mind.