we are the proud parents of a new dog. her name is hope we fostered her about a year and 2 months ago, we have been consist on walking her we take her everywhere with us. and she has been super but as she is getting older, if we take her say to a new park she starts ok and then is scared and dragginf me to the car. ( did i mention she is 103 lbs), if we wlak her in our park she gets this way aftere the first lap around. she doesn like bikes and does like dogs, we have takn her to the dog park, and she loves it, but the walking i feel like i am causing her harm everytime i walk her whGT CAN WE DO. AND ONE OTHER THING WHEN SHE is home and people are walking by the house she will kill you she is so protective

How old is Hope? I love big dogs and am hoping you can send a photo.
There could be many reasons for what is happening, but her age could possibly explain a lot. It sounds like you've done a good job of socializing her. You just can't go wrong with that! Is there some way you could distract her from her fears before they become overwhelming to her? Perhaps take a favorite toy or treats to kepp her occupied? Maybe you've already tried those types of things...

I agree with Ann. Watch her body language and distract her with a toy or treat while she is at a low level. It is much harder to control her at level 10 than it is at level 2