How can I help my dad with BPD?

Hello! I joined this group because I was talking to a friend with BPD and realized that we share a lot of symptoms, and I wanted to see more people’s experiences with it before seeing my psychiatrist. However, I realize now that my dad is even more inclined to have it than myself. I have no problem seeking help, but I know he will. Does anyone have any tips about how I might make him feel more comfortable and be as helpful as possible to him? We have a turbulent relationship, but it’s getting better and I think our mental health has played into our issues with each other a lot. I’m not sure that I want to tell him to see a psychiatrist, but if anyone has any advice about that I’ll take it too. I’m just worried about him, he lives alone, is a single parent on weekends (struggles to be patient), and I want him to feel better.