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.
The best way to not feel hopeless is to get up and do something. Don’t wait for good things to happen to you. If you go out and make some good things happen, you will fill the world with hope, you will fill yourself with hope.
Everything is the Supreme Being, which is existence-consciousness-bliss. I am That. By constantly cultivating this pure thought, get rid of impure thoughts.
That one I love who is incapable of ill will, and returns love for hatred. Living beyond the reach of I and mind, pain and pleasure, full of mercy, contented, self-controlled, with all his heart and all his mind given to Me – with such a one I am in love.
The sincere devotee loves God deeply whether he is non-active and silently meditating on God, or in the midst of a whirl of outer activities.

