I can understand what you are going through,  feeling nervous , restless and anxious can be very distressing. However like you said you have a good will power and you will get over it. I would recommend a detailed case history so that I can take a detailed record of all the symptoms and help you out in a better manner.

Every person is wired differently when it comes to brain. Not able to do reading, concentrating are quite regular problems. Concentration is one of the most essential human skills that we all possess. However, there are often times we all face difficulties in concentrating on a task due to the fact that our conscious mind is distracted. There are a few principles that you can apply in such situations in order to improve your mind control e.g When you are trying to concentrate, all your conscious resources should be focused on the tasks at hand. The second principle of course is the ability to enjoy the work you do . Also, try to identify any stress factor which might also affect concentration.