Even with short-term use, the body can suffer withdrawals when cutting back on the drug.
And yes, you are over the worst of it. Anytime you cut
Ativan in an effort to lower dose or get off it, takes about a week to get completely past that awful experience, and then if you cut again, same thing.
There are plenty of good sleep medicines that can be prescribed to you that will knock you out cold, your doc will know what to give you that is strictly for sleep and not a tranquilizer.