hi there n welcome
all i can say is well done 4 takein a rescue dog on
i have 2 n they each have had different probs.i also addopted a gsd for aprox four months until unforfunatley he bit my oh quite badly on his face,it did end happiley 4 him tho as he went back 2 his prev owner who had been in hosp.
right here goes ,all rescue dogs are different as i said.They each have come from maybe an unknown/abusive/?? background & landed in a kennel.they pee n poop in that kennel all day run in it etc,then usualy inside @ night.day after day until some lovely person like you says thats the one
the only trouble is if they have ever even been taught the basics they have had a while 2 regress in the kennles+ living back in a house added 2 being passed from pillar 2 post she will have anxiety & stress.
there is no immidiate fix im afraid as she learns 2 trust you she will slowly begin 2 relax & follow you less once she knows your not goin 2 dissapear.but she poos in her crate as its like the kennel.loads of praise when she gets it right. & try a game outside with her 4 a while so she just has 2 go .then praise her like mad lol a really tasty treat a bit of cheese or something & just save it 4 that no other time.she will have prob howled her head off in kenels all th dogs barking @ each other.as said as she bonds she will improve no end .sorry its a long reply hope it helps please keep us all posted there will be more help soon xx