What can be hard to assess is how much your current symptoms are symptoms you would be experiencing now even if you had never taken the meds and how much your current symptoms are directly caused by taking the meds.

Since we can't turn back time with you I guess we will never know in your case...

That sucks about the benzo addiction. I have known people to gradually taper off them and kick them altogether but it really can be hard work. It might be that your cognitive function (etc) improves if you come of them... but then it might. would be good to kick them for other reasons, however. people tend to find that it is helpful to have strategies in place for dealing with anxiety etc before trying to taper them back...