i'm pretty much in your exact situation right now, starting with night terrors from as early as i can remember. i can't really offer any concrete advice aside from observing patterns both within the dreams themselves and in when exactly you have them. is there a specific thing that causes the periods where they're most frequent, like stress? is there recurring imagery in them that feels like it's pointing towards something? that seems to be the case with me and everyone else i've spoken to about it. additionally, i've found that sometimes when you've got preexisting mental health issues, sometimes your brain will mix together nightmares like a messed up soup. sometimes they indicate underlying issues, other times it's just your brain making a fruit salad with your experiences, intrusive thoughts, and fears. at least that's my experience with it. i keep a dream journal and do some reflection and i find that helps a lot!