Hi Jasmina, Your English is very good and we were happy to hear from you!
It is good to learn that you have found a way to get help for your son. You have made some good starts. I'm sorry not to be able to give you suggestions on amounts of supplements for detox but can say that the amount you are giving of B6 is quite low, nothing to be concerned about; (you can check with your doctor about using more). Some people need to take it with food to avoid stomach upset.
In addition to the approaches you are using I wanted to mention that it is important to avoid potential triggers that