Extreme nightmares every night for past 10 years

I've been having nightmares every single night for last 10 years.
I get tortured, I get killed, I get raped, I get betrayed by most trusted friends and family.

I don't understand why does this happen to me, because I have a nice - great life,
even though I suffered in the past. My partner and I think it may be PTSD - I have enough traumatic experiences - but I don't know (is there PTSD forum here?)

I am not taking any medication
and I haven't done anything about my nightmares because it really doesn't affect me except that my dentist warned me i have a severe night clench and have inflammation caused by it
and I have developed some mysterious autoimmune diseases,

but nothing is life threatening and I feel ok.

But last night again I had this dream, my mom put me in a terrible prison/cult in an isolated place where people were very cruel, cold had mind reading abilities and aliens raped me and I couldn't escape because they will know as soon as I even think of escape,
and I was there for years, I thought it can't be a dream because I've been there for years, I missed my normal life,
and it was a dream.


I am thinking about going to a therapist but I don't know if how effective therapy is at fixing nightmares - I am afraid I'd end up wasting money and time...

I suffer from horrifying nightmares as well. You can change what is happening in your dream if you know it is a dream. I listen to Mozart when I'm sleeping. The same 6 hours of sleep music every night. I listen for that music in my dreams. If I hear it, I know I'm dreaming and I can either change what is happening or wake myself up. I tell myself it doesn't have to be like this, I'm just scaring myself.