Hello--I've Had Insomnia My Whole Life--i'm Now In Mid Life

hello--I've had insomnia my whole life--i'm now in mid life and it has only gotten worse-- nothing works accept Benadryl--but I don't want to put myself at risk for dementia--i'm desperate--please help--insomnia is taking over my whole life--is it safe to take l-tryptophan everyday on a regular basis-- the meds i'm currently taking are metformin,ranitidine,levothyroxine,atorvastatin,losartan--thanks so much for whatever help you can give!! my email address is YYYY@YYYY ---bless you --Roberta kort