Dear
Welcome to HCM
We understand your concerns
I went through your details. I can understand. Your son do not
need a psychiatrist. He needs an understanding parents. All these behavior issues are due to lack of proper training. I will not blame you. Some how, you could not impart the required behavior training. These things happen mainly because of ignorance. There is nothing to worry.
Your son is just 9 and he is always in the mood to play. School and education has become a burden in his thoughts and that is what you have change with the help of positive and compensatory approach. For that, you need to see your child as a human being, just a human being. You know how you train your 2 year old child for toilet training, to have food while playing, eating alone, playing with pets etc. At that age, if you could train a child to be positive, why can't you do it to a 9 year young child?
You say he is crazy about computer games and tv cartoons. These are progressive leisure. Unless you allowed him to do these when he is adamant, this habit cannot have been formed. That is the problem here and you should see that problem positively. These all happens. Not your fault, just happens.
From now on, change your approach. Love him, pat him, appreciate him, nurture him and reward him whenever he does a good deed and use these same technique to make him do good deeds. When there are wrong doings, do not punish him immediately. Instead, use the above technique to positively motivate to correct the mistake. I am sure you will be able to change his behavior within a month. Be patient. He is a child and a human being and not an animal (you can train an animal with the help of punishment. If you cannot, you can sell that animal). Hope you understand.
If you require more of my help in this aspect, please use this URL. http://goo.gl/aYW2pR. Make sure that you include every minute detail possible.
Hope this answers your query. Further clarifications are welcome.
Good luck. Take care.