Hi Nita, welcome to Texas.
HER, ER, and PR are proteins or hormones that can influence the growth of certain types of cancers. If your cancer is positive for any of those factors, it mean that the availability of those proteins or hormones can cause cells to mutate, grow, and divide more rapidly. Whether a cancer is positive for any of those factors is usually determined with a biopsy and the results will be included in a pathology report. Generally, whether a particular cancer is positive for negative for any of those factors does not alter the course of treatment in terms of surgery, chemo, or radiation, but there are medications that are used post active treatment to suppress available of the proteins and hormones that are positive, thereby helping to prevent future recurrences od those cancers.
There really is no standard definition for a survivor. So say you are a survivor just by being alive, others consider themselves survivors once they complete active treatment and scans no longer show any evidence of disease.