To develop your intelligence read regularly and very attentively the teachings of Sri Aurobindo. To develop and master your vital, observe attentively your movements and reactions with the will to overcome desires, and aspire to find your psychic being and unite yourself with it. Physically, continue to do as you are doing, develop and control your body methodically, make yourself useful by working in the Playground and in the place you work, and try to do it in as selfless a way as possible.
If you are sincere and scrupulously honest, my help is certainly with you and one day you will become conscious of it.
Ref: On Education