Anyone else feel like this?

My story is a strange one, I found out I was not my mothers daughter when I was 7 I was sat down and told that my mother could not keep me because of religion issues I was okay with this at the time because I knew why she had done it and I always thought I understood she had her reasons.My life really was not a happy one, I got sent to live with my birth father or who I thought he was and his wife.anyway 3 years ago, I find out that this man really is not my father, the person who is meant to be my birth mother is the sister of my fathers brothers wife she was young etc around 18 and because him and his wife wanted a baby so bad my uncle and aunt gave me to these two and he just said I was his daughter to avoid people asking questions, I am devastated at this really well not really devastated but confused, I get the feeling my birth father is someone I know etc someone in the family as I was kept in the familyalso the other thing that really hurts me is my sister (my adopted sister) she found out her mom (my adoptive mom) had an affair and her father was not who they said he was and she was given all the love and support in the world me I have been given none, I have always felt I was treated different by everyone in the family and its not just my imagination, I left home at 15 and I have stood on my own two feet ever since.What concerns me is I was never officially adopted.in reality she abandoned me I often wonder if she thinks of me or if my birth father does.:mad: