As we are filled ever more deeply with the Spirit, we become more confident in God's abundant love for us.
There is always a way to extend our love depending on the situation and what is appropriate, and by doing that you'll make a difference. Start small. Rather than trying to love the human race, love whom you love, love what you love, and express that. This will draw creativity out of you and will lead you to the next step. Gradually your capacity to love deepens and becomes more universal. Start where you are.