HELP! Have spouse with Paranoid Personality disorder

Does anyone have experience living with a spouse with paranoid personality disorder. I have been married to someone that has this condition for 25 years. It has taken a great toll on me. My wife thinks she is doing everything right and that it's everybody else's fault. She is very caught up in conspiracy theories and miss trusting people. I have to at some point try and get her some help. The problem is is that she has no idea that she has this condition and would be very suspicious of my motives of trying to get her to go to a therapist and be evaluated. I have four wonderful children with her Ages 24, 22, 21, and 15. This situation has created tense relationships between the adult children and her. I have been trying to hold it together until my youngest daughter is out of high school but In the last couple of years my mental health because of this is severely declining and I have had to get on medication in order to cope. If anybody has any stories about dealing with someone with this disorder I would greatly appreciate hearing them. It breaks my heart thinking about leaving my family but I am getting desperate and don't wanna live like this forever. If someone has any kind of a similar story I would be very curious to know how they were able to Talk to the person and get them help. Thank you.