"For God has not given us a spirit of fear and timidity, but of power, love, and self-discipline."
In scripture, courage is also referred to as "good cheer" which means boldness and confidence. Throughout the Bible, God commands us to fear not, to be of good cheer, and to have courage in our life. Sometimes we doubt our own strength and conviction but, we can turn to scripture for the encouragement to live in good cheer and trust in God.
Here is a link to the video below if it fails to show up. You can also always view in your Browser. https://youtu.be/7gltVqAZ9JA
Jesus relied on the Word of God alone to overcome obstacles, including the devil. God's Word is alive and powerful (Hebrews 4:12), useful for correcting us when we are wrong and teaching us what is right (2 Timothy 3:16). So, it makes sense for us to carry God's Word in our hearts through memorization, to be ready to face any problem, every difficulty, and whatsoever challenge that life can send our way.
I believe in you. I need you to believe in yourself! Be brave!