how much, how many to take, any repeats, how long you've been taking them, when you would've run out at the prescribed dose) you found them very effective, but you can't sleep without them, and could you switch over to a Valium taper and
get off them for good.
Have you tried melatonin
? You can take, say, 6mg with maybe a bit less lorazepam, and after your taper, you might find it's enough to get you to sleep.