Can you take something OTC until you can wean yourself off some? They make OTC sleep aids.
Usually quitting something cold turkey is a little devastating on the bod. If you decide to cut back on OTC's use a method as such:
Day 1: 1/2 pill (if the pill is breakable and not a capsule)
Day 2: Same
Day 3: 1/4 of a pill, or no pill
Day 4: Same
Day 5: None
I'm not a doctor, so don't try to sue me if it doesn't work.
Integrate some type of naturnal sleep aids into your life, warm baths, warm milk, the smell of Jasmine.
Cut out all bed time (time spent in your bed) unless it's strictly for sex or sleeping. Don't even let reading tempt you. Don't watch TV in bed. Don't change your routine, stick to it.
Good luck. If you can't get any relief from this, please consider getting professional help. Happy z's.