born in Michigan, adoption finalized in NYC

Hi. I know I posted on the Michigan board, so I thought i should post here, too. I was born on July 9, 1972 in Grayling Michigan, to a susan ellen fitzgerald. I thought she was 20 when she had me, but I recently was in contact with the intermediary in my private adoption, and she thinks she was 16 or 17; soon to go off to college to become a veterinarian. I started searching about 4 or 5 years ago, but have become more serious about it in the last year or so. Any advice/ideas are accepted and appreciated! Thank you and Good luck to everyone who is searching, too!