Chronic Nightmare Disorder Improvement

I’ve never posted here before, but all my life I would have traumatic nightmares that made me fear sleep and contributed to my awful insomnia. I didn’t know until recently that you could take Prazosin off-label to help, and after a few months I am blown away by how much it helps. I do not have PTSD, my mind just hates me. Does anyone have any experience taking this medication long term? If so, what have you noticed?