I don't think it's weird to be wary of an addictive medication. I think it's smart. Personally I don't think your fears are irrational because Ativan and other benzos are extremely potent drugs. I am very prone to addictive behaviors so benzos are not feasible for me on a regular basis. However, many people are able to take them as prescribed and they do ok. There's no question these medications are very helpful in the treatment of anxiety. Unfortunately that's also part of the problem though. So it's very important to keep an eye on your usage.

Good luck to you!