If you need psychological support you can contact the centre for psychological support of the city Oldenburg (Donnerschweer Str. 43, Tel.: 0441-2353500) or when you have a residence permit you can ask at your health insurance company.
Also in this case you should clarify with the „Amt für Zuwanderung und Integration“ (Office for Immigration and Integration) or with your health insurance company if the treatment costs will be paid for.