South Carolina Pain- Can anyone offer advice?

Wow, what pain to be an adoptee of the state of South Carolina..... I am a 36 year old female who has spent a good half of her adulthood confused by the South Carolina conservative state of mind. I was place for adoption at the age of 2 1/2 and by married parents. I requested non-ID at the age of 18 and the hurt inside was magnified by the statement in paragraph 3 that another child was born. A full blooded sibling. Now let it be stated that I have had a good life, and raised by two wonderful people who cherish me. But, I scream by every cell in my body where are my rights? Why can I not know where my sibling is and why can I not have the God given right to know him? I feel like a puzzle that has to be put together every day of my life but yet someone has hidden the pieces. I have searched and searched and yet I wonder how many of us can stand anymore heartbreak due to the fact that no one seems to be searching for me? Why are they not looking for me? Where are they and I know without a shadow of a doubt that there is still someone in this area that knows something about an adoption that took place in 1974. It is known by my old non Identifying Info that there was family in the same area, and now that I am 36 years old and my adoption took place by United Way which no longer handles adoptions where my records are.... I have tried everything and anything from paying out $1,000's of dollars to everyone who promised an answer to contacting every adoption attorney in SC to petition the courts to open the file. At the end of the day I am told that unless I have Leukemia or am crazy they do not care. It does not make sense that I have to have a problem to have rights. I understand that i have blessings and beautiful children,but does no one understand that every time I look at two of them I wonder where does the red hair come from??? I don't know because I have no past??? How do you deal with this, and is there a real way to change the past... I always ask myself have I done everything and anything possible to help find the sibling. I am sick of paying people for no information and no help and I THINK I should have the right to ask and be told because I am a 36 year old human with the desire to know her past whatever it may be. I also am sickened by the fact that people do not believe that I am smart enough to handle whatever information I may receive.