There are several, well established alternative treatments for anxiety, that might also help with the focusing.
Mindfulness Stress Reduction (8-12 week class)
progressive muscle relaxation
yoga therapy
controlled breathing/meditation

Who is prescribing your meds? I understand the side effects with the SSRNIs, etc, but a psychopharmacologist is someone who specializes only in prescribing medications. They are usually psychiatrists with specialized training. There are new ADHD meds that are not stimulants.
You might also want to consider a neuropsych. evaluation.