Of itself, suffering doesn't make people better. Sometimes it makes them bitter. But when suffering is mixed with faith and God's grace, then it becomes a wonderful tool for building godly character (2 Cor. 12:1-10). If suffering alone gave people wisdom and character, then our world would be a far better place, because everybody suffers in one way or another. When we accept our suffering as a gift from God and use it for His glory, then it can work in us and for us to accomplish the will of God.