Life as a Christian is not without illness, death, loneliness or despair. God never promises that Christians would not be affected by any of the above obstacles. God says, "I will never leave you nor forsake you." (Hebrews 13:5)
We have to meet the obstacles and overcome them and move on with the help of our ever-present Saviour.
Romans 8:28
And we know that all things work together for good to those who love God, to those who are the called according to His purpose.