My son took a program for anxiety called "Facing Your Fears". The parent and child books can be found online. It may help him in the long term. My son is autistic and feels that anything less than 100% is a failure. We have worked hard to let him know that we are pleased as long as he is trying. I find with my son if I let him know that we have struggles too that he copes better. Knowing that mom and dad have anxiety/worries validates that it is ok to have worries too.