I was taking Xanax .25 mg for many years as needed during the day but took it every night for sleep. I want to wean off of it. I took 1/2 of .25 mg for 3 weeks and then 1/2 of .25 mg 3x a week for 3 weeks..Then I decided to stop taking it at all and have trouble falling to sleep so I went back to take 1/2 of .25 mg 3 x a week. How long should I continue to take that dosage? and will taking 1/2 off .25mg 3 x a week be okay if I cant stop totally? Please advise?