How long do small girls play with their dolls? As long as they are not married and do not live with their husbands. After marriage they put the dolls away in a box. What further need is there of worshipping the image after the vision of God?
If you desire to be pure, have firm faith, and slowly go on with your devotional practices without wasting your energy in useless scriptural discussions and arguments. Your little brain will otherwise be muddled.
You speak of doing good to the world. Is the world such a small thing? And who are you, pray, to do good to the world? First realise God, see Him by means of spiritual discipline. If He imparts power you can do good to others; otherwise not.
The fool who repeats again and again: "I am bound, I am bound," remains in bondage. He who repeats day and night: "I am a sinner, I am a sinner," becomes a sinner indeed.