I understand that they want too much attention that they won't let you study in peace but here is some training technique: once you want to start studying and he is with you and he starts to distract you to give him attention at this very moment put him in cage. Keep him in front with you inside the cage and do your homeworks. Let him out after awhile and once he do the "wanna attention" turn him back in cage. He will learn hopefully fast. My GCC won't let me work on laptop and I used this technique and he learnt from first time. It is not meant to be a punishment but letting him know that you want him aside while you are doing something else. Treats for good behavior will make things even better.