Too much thinking and lack of concentration.

Hello, My name is Farooque and I am 35y old, suffering from below problems. Please help.

1) Too much thinking of past and future because of which I often forget what I am doing or did.
2) Slow to learn, understand and answer. Many a time I have to repeat if I am reading something to understand it.
3) Not spontaneous and low IQ. Not able to answer quickly which seems lack of intelligence.
4) Hard to remember name of anything, like people name, medecine name, etc.
5) Fear of people.
6) Gets hurt or feel bad very soon if anyone says anything against me.
7) Very very poor concentration while reading or doing any work and specialy during my prayer.
8) Weak memory because of which I often forget most of the things.

I have been taking Ginkgo Biloba 1X since 2 months, 2 tablets thrice a day but no improvement as such, for this forum i found Ambra Grisea but not sure if this will help me in my symptpms I mentoioned above. Your help in this matter would be greatly appreciated.

Farooque Mohammad