Genealogy / Adopted from Poland - share your experience [6]

Hello, I was adopted from an orphanage in Bobolice in 1977. I was adopted to Canada and this is where I still reside. I do not have access to any paperwork at all as my adoptive parents insist on being very stubborn & private about everything. It was told to me that my biological aunt of mine worked at the orphanage and showed genuine concern for where I was being placed. I am curious about my birth parents and if I have any siblings. What is the process I must go through to find my birth family. I just beginning my search and thought perhaps someone may be able to help direct me? I have children of my own now and having them has caused me to feel a deep desire to find out more and hopefully meet my birth family. Thank you in advance if you think you can help!