My brethren, count it all joy when ye fall into divers temptations; Knowing this, that the trying of your faith worketh patience. But let patience have her perfect work, that ye may be perfect and entire, wanting nothing. (James 1:2-4 KJV)
What it means to count it all joy when the tribulation and trial would come to your life? Living a life for Christ is not simple to live in this earth, but it's worth it. Remember in Acts 9:15-16, what God told Ananias about this persecutor, Saul, for Christians. He said, "Go thy way: for he is a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel: For I will shew him how great things he must suffer for my name's sake."
God calls us to be chosen instrument to share His love and message to His people, so they could establish relationship with Him. There is a greater reward to those who are living lives for Jesus Christ. Having a disability in your life, it doesn't mean that you would not have a joyful life. Paul said in 2 Corinthians 12:9, "And he (Jesus) said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me." Living as a disability is like wearing a suit. I'll not meet the Lord with this cripple body, because on the day of His calling us to home, our bodies will be changed in the twinkling of an eye (I Corinthians 15:52).
So, we need to joy our lives in this presence time. God knows that we don't have easy life here, but He can help you to go through trial and tribulation in our lives.