Suffering is hard. It is not fun. However, it helps when you know that by suffering you are accomplishing something good. The Apostle Paul gave us an example to follow when he rejoiced in his sufferings, especially when he was suffering on the behalf of other believers.
Now I rejoice in what I am suffering for you, and I fill up in my flesh what is still lacking in regard to Christ’s afflictions, for the sake of his body, which is the church. (Colossians 1:24 NIV)
There are many ways that we can suffer for our fellow believers. We can suffer by giving financially out of our meager means for the purpose of another believer who is worse off than we are. We can suffer by giving up our lives to go to a hostile country to preach the gospel to others, giving them an opportunity to become believers. We can suffer by standing up for another believer when everyone is persecuting them. We can suffer by investing ourselves about them emotionally, so that we become concerned and worried about them when they are concerned and worried for themselves. None of this is a waste, because when we suffer for others in the church, we are suffering for Christ, for the church is is body.