We have an almost 1 year old lab. We got her when she was 5 months old from a family who had gotten her at 4 months and didn't know how to handle a dog. We have had 4 labs so we are very familiar with the breed and the training but she is just not responding. We haven't been able to even teach her to shake! But the worst part is how skittish and scared she is all the time. She barks at everything, her hair stands up whenever there is car that goes by our house, anything. She cowers if you try to correct her at all and as she gets older I have become more and more worried of being bitten. She is most scared with me which I don't understand because I've never done anything to her. We are becoming worried that maybe the family we adopted her from abused her and it was mostly the mother??? I don't know. But complicating the issue is that I run a family daycare from my home (which rules out socialization issues because our vet has always complimented our dogs on great socialization as a result of the constant people of all ages around) and I am worried that there will be that one moment when she snaps. I don't have her out with the kids - the room is gated off but you just never know how creative kids can be and that scares me. Is there something we can do without understanding the root of her fear and what should our next step be? I am to the point of being scared to correct her and leave a lot of it to my husband.