I'm sorry you are having such problems sleeping Justme. Maybe if you went the other way and worked with the dreams of your ex more, you wouldn't have to have them as often; their message(s) would get across to you and you could be done with them? Encourage dreams of your ex? Study them? I know what it is to have dreams we wish we didn't have to (I dreamed of cleaning my apartment from 15-20 years earlier and cockroaches everywhere there, for 10+ years! It was maddening).

Can you work on the boredom so you don't want to nap; do a little something so you get more tired?