Use the Dharma that you have studied to change your mind, to be different from before. That is the purpose of Dharma, and if you can use it to change your mind in this way you won't be poor in Dharma.
As Tewugen Rinpoche said: Those who know the secret of turning iron into gold through alchemy never experience material poverty.
The most important thing is practice in daily life; then you can know gradually the true value of religion. Doctrine is not meant for mere knowledge, but for the improvement of our minds. In order to do that, it must be part of our life. If you put religious doctrine in a building and when you leave the building depart from the practices, you cannot gain its value.
His Holiness the Dalai Lama