I’m starting to get this now. Everytime I try for a WILD, I get a small little itch somewhere on my body. I try to ignore it but can’t take it any longer so I scratch it and it starts a chain reaction of itches. I try not to think of being itchy but then I start to think of itchy subjects and I can’t help it 
If you are getting more and more fired up, you will likely have trouble sleeping let alone WILDing. If I was you, I would try to stay calm and slowly itch the itch. If the chain reaction still happens and you can’t control it, maybe try doing something for a while then going back to bed. If it’s an option read a book for five minutes, or something to take your mind off it before trying again.