When we perceive goodness in everything, we will be filled with God's grace. That grace is the source of all success in life.
How to attain concentration? There are no short cuts. Constant practice is needed. In the beginning, it is a great thing if by chance we get even one or two minutes of concentration in an hour. We should make continuous and sincere effort without stopping until we gain one pointed concentration.
Chant your mantra while engaged in work. This way, the mind will be continuously focused on Him.