Matthew 5:48 Therefore you shall be perfect, just as your Father in heaven is perfect.
Always read verses in context. If we think we can achieve some sort of perfection in our lives we are only fooling ourselves.
Yes we can hope to become better at things and hope to better influence people, but if we want to achieve some sort of perfection we have to have a whole lot of outside help!
Christ is willing to make us perfect; but we should be willing to love the people around us just as He has asked us to.
Start with that love and invite Christ in to help you become a better person with His help!