Biblically speaking what is the best mature way to handle this?

God never promised us that we would be free of trials, but He did promise to give us strength and grace to endure. It is not easy, my friend-For anyone that has read any of my answers in the past, will most likely know that I have suffered with a Chronic pain disease for all but 12 of my almost 50 years. I am not sharing this to have you feel sorry for me, please don't. I am sharing with you to possibly encourage you. I prayed and prayed for God to remove this from me, and He hasn't. Just a couple years ago, I prayed to God to show me what He wanted to teach me in this trial that never seems to go away, as a matter of fact it gets worse as the days go by. What do He teach me? He taught me that my pain was not all about me. He showed me that I can not only live into the grace that He provides for me, but I can also show forth comfort and grace to others because I have experienced it. It is hard not to be bitter, but try what I did, and I can tell you , He will bless you in ways that He wouldn't if you were not going through this trial. God bless, and if you want to talk, and email, please feel free.