"For even the Son of Man did not come to be served, but to serve, and to give His life a ransom for many.” ~ Mark 10:45
Contentment and happiness comes through serving others out of the compulsion of our heart. Jesus set the course for us to live our lives abundantly - through serving.
Think of the Christian life as a series of doorways - each of them leading to a new opportunity of service.
Find a way to serve someone every day. A kind word, a helping hand, a warm meal. Use your imagination. Serve not because you have to, but because you want to. This will erase fear and replace with joy.