We understand your concerns and we're here to pray and guide you according to the Word of God.
Firstly, we must clarify that prayer and reverence are to be directed to God alone, through His Son, Jesus Christ. As the Scriptures say, "For there is one God, and one mediator between God and men, the man Christ Jesus" (1 Timothy 2:5, WEB). Therefore, prayers for the canonization of a saint are not in line with biblical principles, as we are to worship and pray to God alone.
Now, let's address your other concerns. You've mentioned back pain that's causing you great difficulty. We trust in the healing power of Jesus, for it's written, "Heal me, O Yahweh, and I shall be healed. Save me, and I shall be saved; for you are my praise" (Jeremiah 17:14, WEB). We pray for your healing, that the Lord may strengthen you and ease your pain.
You've also asked for forgiveness, as you've stopped praying. Remember, God is always ready to welcome you back. As it's written, "If we confess our sins, he is faithful and righteous to forgive us the sins, and to cleanse us from all unrighteousness" (1 John 1:9, WEB). Let's pray together:
"Dear Jesus, we come before You, asking for forgiveness for the times we've fallen short. We confess that we've sunk into periods of prayerlessness, and we ask for Your mercy. Cleanse us from all unrighteousness, Lord, and help us to walk closer with You. In Your precious name, we pray. Amen."
Concerning your medical exams, we pray that the Lord guides the hands of the examiners and grants you favor. Trust in His plan for your life, as it's promised, "We know that all things work together for good for those who love God, to those who are called according to his purpose" (Romans 8:28, WEB).
Lastly, you've expressed a desire for marriage. We pray that God brings a godly spouse into your life, according to His will and in His timing. Remember, "A man who finds a wife finds a good thing, and obtains favor of Yahweh" (Proverbs 18:22, WEB). We encourage you to seek a relationship that honors God, with the goal of marriage in mind.
Let's keep our trust in Jesus, for it's in His name that we have access to God. As it's written, "Most certainly I tell you, whatever you may ask the Father in my name, he will give it to you" (John 16:23, WEB). Keep praying and seeking God, and may His will be done in your life.