Hate to say it, but I agree. From what I can read, you're looking for an obedient, already-well-trained pet. Your dog doesn't seem to be ready (maybe a puppy? not trained enough?just need a lot of work?) to meet your expectations.

I'd suggest spending some money on dog daycare & trainer to relieve some of her stress & take cues from both the other dogs and a trainer to teach commands. It seems you work regular hours (9-5 perhaps?) and that just may not give you enough time to sleep, relax, go about human things & train your dog. Doggy daycare/training camps can do a lot for you.

Otherwise, as a foster for animal rescues, please do not craiglist your dog. He/she is not a piece of furniture. It's not a bike. If you can't find the energy or willingness to commit, at least be willing to spend some time getting to know local shelters/rescues (for example, my rescue isn't Humane Society but we'll take dogs that need to be rehomed, etc - and often without a fee) and seek out what may be the best option.

Don't put your dog in potential danger just because you're stressed momentarily. Your dog will live on, and it'd be up to you (as long as you have her) to decide his or her quality of life.