How to get rid of your father's maintenance obligation in the event of a serious breach of parental duties

Hello dear Carbonajünger, Short explanation of my situation: I am 23 years old, grew up in Germany, am a German citizen and am studying medicine in Austria. So it is very likely that (with inflation) I will have a gross income of >100,000€/year in 10 years. In addition, there is already discussion about completely removing or lowering this limit so that pensions can be increased again. Now my father was an absolute disaster, had everything