thank you for sharing your situation with us in the community.
As for your question:
1. please letthe authorities know that you are not going back;
2. if not done please get an lawyer;
3. in case you have been working these years in Germany and have integrated well- there are ways to get you an Aufenthaltstitel, but it depends on facts such as German langugafe skills, your occupation in the last years and the criminal record.
I hope we could assist you, if you have further question please feel free to address them here.