This is a question that the Christian faith cannot simply sidestep. Glib and shallow answers will not do. There is a line of thought amongst some Christians which suggests that if you have enough faith then you will prosper in life and all your problems will disappear. God will look after you. The truth is that such a view is mere fantasy.
Christians suffer as much as anyone else.
To walk in the footsteps of Jesus of Nazareth is not an insurance policy. Indeed a walk through the history of the church points to some of the great Christian heroes experiencing suffering in double measure. There is, for example, the story of Dietrich Bonhoeffer. He was a leader of amongst those Christians who spoke out against the dictatorship of the Nazi Party in Germany. He eventually was imprisoned and executed for his efforts.