>>45553801I find spending some time before sleep focusing on positive or comforting thoughts regarding whatever or whomever you'd like to see about helps a little to avoid those kinds of dreams. It's not guaranteed of course, I've had bad dreams similar to yours, but the human brain is an imperfect thing, prone to misfires and vulnerable to interference from malign influences. It's probably best to not read into them too much, even if they are very unpleasant in a way that sticks with you ;_;