I'm at my witts end.

So I fled a DV relationship 3 years ago but mentally I can't escape. I just can't sleep. I keep getting flash backs, visions of me and my daughter being murdred ( he threatened to kill us) & my daughter being kidnapped. These ate brutal murders though and I just can't sleep because of it. I've been to the doctors they

Can't give me nothing cos of my daughters health and she's disabled. I've tried everything recommended but my mind is doing over time. Please someone help me