Luke 12:26

Luke 12:26 says "If you are not able to do the least, why are you anxious for the rest?" I came across this verse, which was highlighted in my bible, and paused. If I strugle with the fact that one day an oppurtunity will come along to share my faith with someone, how can i keep looking to God to answer my prayers. If I can't answer God when He calls, why should He answer me when I call? It was an awakening moment that I realized I need to fully live my life for Him and not worry about what the world will think of me but instead what I can do to change the world. God is my father ; I wouldn't disobey my worldly father and then turn around and ask him to to do something for me so why should I do that to my heavenly father? Life here on earth is short so we should live it to the fullest, honoring and pleasing God.