Philippians 4:9

The things which you have learned and received and heard and seen in me, practice these things (in daily life), and the God (who is the source) of peace and well-being will be with you. 

We are to be intentional with our faith and practice, believing and acting on the Word of God. Start with practicing your authority and faith for a headache or a parking space. The faith will build as we see God work with us for what we are believing for responds and the headache leaves. Our authority as believers is real, and just as Jesus spoke to the fig tree, we are to speak.