Evil Spirit tricking me?

[Cearneigh]

Alright, here is a little story that I need some input on.

Apologies if this is the wrong thread. Still learning my ways here.

There has been an evil spirit harassing me. I think it has ever since childhood.
There was a soulmate for the longest time in my life,
but when she came out over something quite distressful that happened to her,
that's where our paths ended.

Now as off a few months ago to a year now,
I was in contact with someone else I would have considered a soul mate,
but she went down a path that was very similar to the distressful part of my previous soulmate.
The only difference here is this one was willing under the influence off this spirit.
Which I only now realize it was too coincidental that I called it there.

This spirit has been showing itself off in the meantime when talking with this soulmate.
Right now I've been trying to find a defense for it,
but it's taunting itself as a very powerful evil spirt (perhaps demon).
A few things happened with the other soulmate that made it hard for me to ignore it was there. It was hurting her too on occasion.
At first I thought it was a succubus or the like, but this goes further.
I can't explain all the events for private reasons, of course.

It's trying to find a weakness in me or triggering similar events that happened in life to get me off edge.
When I try to find a defense against it, the demon itself only gets stronger.

What I need mostly is an identity on this demon,
in the best case I want it out of my life, but it keeps telling things on the spirit realm, how I am associated, how strong my energy is.
It keeps trapping my own spirit, so that I don't feel like myself, or put myself in a bad spot anywhere.

Thanks for reading.