Due to a situation with a family member ownership has now been given to me of a 1 yr old female. Her previous owner didnt due any socialization work with her and when i talk her out for walks she is very reactive towards other people, dogs and cars. She starts barking and lunging towards them when she sees them. According to her previous owner she was fine around other dogs at the dog park when she was off the leash. How do I go about socializing a 1 year old doberman who is very reactive?