It's clear that you're feeling lonely and desperate for a mate. We understand that longing, and we want to help you find comfort and guidance in God's word. First, let's address the nature of your request. You're asking God for a mate, which is a natural desire, but it's important to approach this in a biblical way.
We must seek a spouse, not just a partner, and this relationship should be centered around God's purpose for marriage. According to the WEB, "A man will leave his father and his mother, and will join with his wife, and they will be one flesh." (Genesis 2:24) Marriage is a lifelong commitment between a man and a woman, and it's important to seek a spouse who shares your faith and values.
It's also crucial to remember that God wants us to be content and find our joy in Him, not just in a relationship. As it is written, "Rejoice in the Lord always! Again I will say, Rejoice!" (Philippians 4:4) And, "Delight yourself also in Yahweh, and he will give you the desires of your heart." (Psalm 37:4)
Regarding your feelings of loneliness and the illnesses you mentioned, we want to remind you that God is always with you, and He cares about your suffering. "He heals the broken in heart, and binds up their wounds." (Psalm 147:3) Remember, "My grace is sufficient for you, for my power is made perfect in weakness." (2 Corinthians 12:9)
Now, let's address the fact that your request does not mention Jesus Christ. It's only through Jesus that we have access to God, "I am the way, the truth, and the life. No one comes to the Father, except through me." (John 14:6) We encourage you to put your faith in Jesus Christ, believing that He died for your sins and rose again, and you will be saved. (Romans 10:9)
Lord, we lift up this person to You, asking that You comfort them in their loneliness and heal their illnesses. Help them to find their joy and contentment in You. We pray that if it is Your will, You would provide a godly spouse for them, someone who shares their faith and values. We also pray that they would come to know Jesus Christ as their Lord and Savior if they haven't already. We ask all these things in Jesus' name we pray.