....went to an open call and was asked my age, today I got an email that I do not fit the requirements to be a llama.  I guess I'm too old, too fat, or not pretty enough. 
Tired of never feeling good enough.  In lieu of sour grapes, I just want to feel good about myself again and not have my age thrown up in my face all the time.

Modeling should not be your method of self validation.

If modeling makes you feel like this on a consistent basis, then maybe it's time to stop-- or at very least take a break.

With your age and stats, you'd definitely work better in commercial (or stand mroe of a chance) than fashion. But I'm not sure if there's much, if any, of a commercial market where you are. Or you could keep doing it for fun, but if it's destroying your self-image, I really doubt that's worth it.

If you're just having a bad day, then I'm sorry. I had one of those yesterday and they're never fun. Keep you chin up and keep pushing forward, but always reevaluate your goals as you go-- changing direction isn't necessarily a bad thing.

Models will get rejected. One rejection shouldn't impact you to the degree that you are making statements like "tired of never feeling good enough". It's hard after being turned down, but try to focus on all that you have achieved

I'm going to go out on a limb and say that modeling might not be the best hobby or profession for you.

If you're easily bruised and are looking for validation, modeling is NOT the way to go.

Unfortunately, the Maryland/DC market is a pretty shitty market (no matter if you have good stats or not).

A lot of the agencies (with the exception of T.H.E Artist Agency in DC) are run by folks who have not interned or even tried to gain experience about how modeling works.

Never take rejection personally... modeling is a business and like any business, each has their own idea of what they are looking for or their client has specifics of what they are looking for.

I'm way older than you and have been asked if I am available for a variety of modeling, including runway shows in Atlanta.  Of course, I said yes, even though I'm short and probably will be older than most of the models there.

But think about how you go in (your attitude) as well when you're there seeing people.  Are you shy, do you show insecurity, etc.?  In modeling, if you don't have confidence, they know it.  If you're a little unsure of yourself, then become what you want via acting - believe you are the person they want/need (fake it until you believe it yourself).

I agree with most of the comments already expressed. Rejection is a big part of this business and requires a tough skin. I have applied with Cima also and they accepted me. But guess what, they wanted me to pay them for modeling classes and photos. Oh hell naw!!! I ran in the other direction fast.  Now, I've pretty much changed the type of modeling I do. You're much younger than I am, and what I've learned is that you've got to get in where you fit in.
 
     Never let this or any job question your self worth, because what one agency may not want, another is casting for.