No - the Rescue Remedy idoesn't require an Rx from a Dr. - if you have a Whole Foods near you, it's there.
Re: the Ativan. There is a difference between addiction and dependence:
Addiction is like abuse. If you find yourself having to take/use the drug to live life--and you take it more than prescribed, or take it when not indicated, that's addiction.
When you have taken it for a long time, that's dependence. Two different problems.
I've experienced them both, unfortunately - not fun.

When I was down, Ativan gave me a high, it made my heart race, so I can't say it helped the anxiety.