ISO Half sis Born 5/1971

Hi I am reposting some information. I am in search of my half sister. She was born 5/1971. Our mom's name is Janice, so is mine, by the way. You were born in Philadelphia. Our grandmother made our mother give you up, and the adoption was finalized 2 weeks before our mother 18. So that would have been very late july, very early august1971. I am trying to be very patient and having faith that I will get a chance to meet you, but I am getting ready to leave in July to move across the country. I have a wonderful family, a great husband and 3 wonderful children that would like to have an aunt in their lives. I am so much differant from the rest of our family that I would like to know if we share anything in common. Other than that we do have another younger sister, who was just married and she does not plan on having children. So the nieces and nephew are all from me. I do wish to find you and I will keep having faith. So if any of this sounds familiar please email and ask away, I will let you know what more I know. :)