Hello Hard guy,
Thank you for clarifying your inquiry.
What exactly does the letter say that you received from BAMF (or: What is the reason why they denied you refugee status)? What status do you have right now (Do you have a "Duldung" or are you “vollziehbar ausreisepflichtig” etc.)?
Depending on that we can advise you what to do next. Usually you have two weeks time after receiving the letter to file an action against it in court. If you have the financial ressources it's probably a good idea to consult a lawyer specialized on asylum law to handle your case.