I had insomnia for like 3 years regularly and had it for like 3 years before that on and off. Im pretty much over it now (except for here and there when i still get it like tonight for example) but in those long hard years i never found a "cure" or anything that really helped me to get to sleep (except for baths but the wierd thing is i would start to fall asleep in the bath but when i got out i would be wide awake!) so unfortunatly your stuck with it. I just hope you cant find something that can konk you out eventhough i never could.