There is always purpose in the pain, as well as the struggle, with the Father. It will always lead you closer to Him. Possibly, it will show you things about yourself( your weakness or your strength). It may be the story the Father continues to write about you, for others to read, that He may reveal Himself and Who He is. Sometimes, it is to prepare and equip you for a greater call. But, one thing is for sure that these things are not… they are never wasted.
He allowed His only begotten Son, to suffer, pain, as well as the apostles. Are you greater than these. No, but the Father loves you just as much, and He desires to use your life, that He may receive glory and honor.
When you go through the pain and the struggle , you are never alone, but He always has purpose for whatever your circumstance (Romans 8:28). This is never easy, but you are His son or daughter and you were created with purpose. Do not fear, and do not complain; count it as an honor that the Father chose you to reveal His glory.