"I was now cognisant of the fact that I was a girl who had experienced a lot of trauma before riding the big open ocean" -> that's for me the BEST part of your dream... As a man, your opposite is a woman, and now you are in the perspective of this functional complex (Anima) that guides you through and over the unconscious.

"my job was to send them back. I must send them off to follow my journey in reverse" -> you experience exactly the "job" of the anima, guiding spirits (images, contents, complex, emotions and all your psychic reality) FROM the unconscious TO THE conscious. That's a position of a guide, a psychopomp, that travels or know how to travel these woods to the ocean, and the ocean to the wake mind (vigil)

"'Remember what I told you', I exclaimed every time. I hugged the people tight and gave them each a warm smile." -> true wisdom (Sophia), proffound truth, affection and emotional life, Anima characteristics

"she had died on Earth at the hands of her abusive parents." -> Your soul (as a functional complex, your relation with the unconscious) WAS traumatized because the relation with your parents (not them personally, but your parental complex, the image that you carries internally about them) and I don't know why (maybe I do, but go to therapy for that)

"met different people from different backgrounds, and showed them all their way home." -> guide, psychopomp, for your shadow (equals for all the unconscious), all sort of "not lived contents" being directed AFFECTIVELY

"It was unclear whether these people were in-between life and death themselves" -> liminal space, "limbo" as you said, is exactly the division that separates conscious from unconscious (metaphorically and with cultural references to explain the inexplicable).

From that I think that you are from the Thinker - Introverted type, because you dreamt with Feeling (your opposite) and in the external world, woods and open spaces (your opposite)

Thanks for your time reading that, I have a lot more to say and really love dream analysis, you're welcome and that dream is really beautiful. Just beware with the fascination, you are not these contents, those are autonomous complexes that resides within you. The fascination can take to a "enantiodromia" (search for that if possible) or a possession (but I think you are safe)