30 years with a narcissist husband,

When we first met, he was sweet, and there was something about him I fell for. I met him when I worked as a shelter aide. for a homeless shelter, he was a client there. He moved in with me, I quit the job I loved so we could be together. He started showing his true colors, and I was lost. We married a year after we met. and I was pregnant and scared. I couldn't make it on my own. He would tell me I'm going to leave you. then you'll be alone with no one. I had an etopic pregnancy and I lost my baby. and almost my life, he told me I'm glad you lost your baby. He and I separated 3 years ago. And I've been living on my own. He was living nextdoor to me. Then he lost his job, never got another one. And lost the place, because he couldn't pay rent. He used to set off fireworks in the backyard and walk around this property. At all hours in the middle of the night. I caught him looking in my bedroom window. He's moved out, I've blocked his number and I'm trying to move forward. But he's still trying to cause me problems. 30 years of Hell with someone narcissistic. How do you finally get rid of them? And how do you not get emotional and anger, over the games they still try and play? At 60 all I want is peace and harmony in my life.