"Herein is our love made perfect, that we may have boldness in the day of judgment: because as he is, so are we in this world." (1 John 4: 17)
A better translation reads:
"Herein is love made perfect with us, that we may have boldness in the day of judgment; because as he is, even so are we in this world." (1 John 4: 17, ASV)
Our love is not perfect, for in fact we do not love in and of ourselves. We love because God first loved us through His Son Jesus (1 John 4: 10, 19)
How then, do we see this perfect love? We see ourselves in Christ, we identify fully with Him, and we grow in grace and knowledge of Him (2 Peter 3: 18), believing that everything that we are, have, and do is based in Him.
As you see more of Jesus in every part of your life, so then you will see how God's love is perfected for you.