I understand where you're coming from. I know this sounds rather cliche, but try calming yourself down before bed. I found that when I went straight to bed after a long stressful day I had more nightmares than good dreams. Now, I try and follow a nightly routine of pampering myself. I cleanse my face completely and light a candle while I read a book to put myself to bed (making sure to blow out the candle before I go to sleep of course!). I hope these methods will help - if not, I wish you the best of luck in finding a proper way to cure these nightmares!