Be strong and courageous. Do not fear or be in dread of them, for it is the Lord your God who goes with you. He will not leave you or forsake you. -Deuteronomy 31:6
Courage is hard. It seems easier to just let things go than to face the music, but if we have courage, we have a lot. Standing up for what you believe in takes courage. Doing what you know is right or facing that big problem head on takes guts and strength, but it can be done. Feeling scared is a natural part of courage, but don't let that feeling prevent you from doing what you need to do. All things are possible.
Sometimes we think that things will just work out without having to be courageous. That could be true, but doing that means you have succumbed to that fear, problem, or what you believe in without any courage. It's not easy, but it is definitely worth the effort knowing that you faced that issue head on. So be courageous.