Gordie - one thing we have both learned here is that we can't control other people. I am sure your parents are coming from a place of kindness and love and also perhaps nosy busy-bodies
There's an acronym that I found on another site that might be helpful. BIFF. Brief. Informative. Firm. Friendly.
If you keep the answers short and then change the subject to something more positive and interesting and forward looking, perhaps in time they'll stop focusing on what went wrong in the past.
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells