Psalm 119:50 "My comfort in my suffering is this:
“We must go through many hardships to enter the kingdom of God.” We do not suffer in vain. All that we suffer through has a purpose. It is intended to help us to rely on God more and less on ourselves.
There are two ways to respond to suffering: question, blame, and curse God while you suffer OR praise and thank God for the suffering that drew you closer to Him. Job 2:9-10 is a good example.."His wife said to him, “Are you still maintaining your integrity? Curse God and die!”He replied, “You are talking like a foolish woman. Shall we accept good from God, and not trouble?” In all this, Job did not sin in what he said."
Suffering makes our hope in God's promises all the more powerful and meaningful to our hearts, minds and souls. 2 Corinthians 4:17-18 "
Are you going through a tough time? Take heart. The Lord is sovereign and He controls all adversity in our lives. That’s why it’s important to remember how much He loves us. If He allows us to go through pain, suffering, or loss, then He has something good He wants to accomplish in us. [intouch.org]
As for myself, my personal suffering is God's way of keeping me focused on Him and His promises. If CMT [Charcot-Marie-Tooth disease] had not been my 'thorn', where would my spiritual state be? The struggles make you stronger, and the changes make you wise, but to God none of it is a surprise. God is my all in all, every step of the way.
7 Truths About Suffering [C. Stanley; intouch.org]