Psych drugs aren't designed to "cure" anxiety really. They just take the edge off. If you have light anxiety, they could maybe alleviate a lot of your symptoms. They aren't as powerful as a lot of people think though. Usually what happens (I think) is that people get seemingly promising results initially because of the placebo effect. After that, the effects lessen. There's probably no drug out there that eliminates the stress response and is also healthy to take for a prolonged period of time. The reason people use hard drugs is often to eliminate the same response.
Expecting a drug to get rid of anxiety completely might not be a good idea. You can keep searching, but it's unlikely that something like that exists.
Anyway, if your plan is just to receive a little bit of relief from the symptoms, I would say that the drug is working pretty well and you might consider moving up to 100mg after another week or something. Even with the drug, you'll have bad days. But it's really only designed to provide a light level of relief, particularly for depression.
Also... the negative symptoms should go away after about 2 weeks, so I doubt you'd still be experiencing that stuff... but maybe.