Maybe talk to your landlord about your situation and they may provide you with some help?. Also, Germany don't you get from Arbeitsamt if you are unemployed?
I'm talking about employed situation.
So, you're employed, you have the income to pay your rent, but you want to decide not to and feel okay about that.
I did not decide anything and i did not mention feelings
Then I can’t pay the mortgage on the house I am renting you and need to start looking for another tenant. That means yes, you get kicked out.