Give up all forms of parrotry. Start practicing whatever you truly feel to be true and justly to be just. Do not make a show of your faith and beliefs. You have not to give up your religion, but to give up clinging to the husk of mere ritual and ceremony. To get to the fundamental core of Truth underlying all religions, reach beyond religion.
There is no difference in the realization of the Truth either by a Muslim, Hindu, Zoroastrian, or a Christian. The difference is only in words and terms. Truth is not the monopoly of a particular race or religion.
God has come again and again in various Forms, has spoken again and again in different words and different languages the Same One Truth - but how many are there that live up to it? Instead of making Truth the vital breath of his life, man compromises by making over and over again a mechanical religion of it - a handy staff to lean on in times of adversity, a soothing balm for his conscience or a tradition to be followed.