You simply be yourself. Your real self. You start doing the things you really enjoy, doing them every day, several times a day if you like. You wear the clothes that make you feel most comfortable and most like yourself. Take care of yourself, first and foremost.
Isolation is a favored tool of the abuser, effectively keeping the victim in bondage.
The victim is often confronted with hostile attitudes blaming her for her predicament, when in fact it is caused by society's attitudes toward women. We need to reject this myth harshly. We also need to recognize the factors society uses to create image problems. Until the end of the 19th century, women were prized for their ability to bear and raise children. Society wanted them healthy, and the standard for body image was one of comfortable weight.