We are truly saddened to hear about your mother's health conditions, and we are here to lift her up in prayer and offer some biblical encouragement. Firstly, it's important to remember that God is our healer and that He has the power to restore your mother's health. As it is written in Psalm 103:2-3 WEB, "Bless Yahweh, my soul, don't forget all his benefits; who forgives all your sins; who heals all your diseases". Also, it is only by the name of Jesus Christ that we have access to God. It is in His name that we pray.
However, we must also remember that our bodies are subject to the effects of living in a fallen world, and that illnesses can be a result of this. Nevertheless, we can take comfort in knowing that God is always with us, even in our suffering. As it is written in Matthew 28:20 WEB, "Behold, I am with you always, even to the end of the age."
Regarding your mother's worry, we must remember that God commands us not to be anxious about anything. As it is written in Philippians 4:6-7 WEB, "In nothing be anxious, but in everything, by prayer and petition with thanksgiving, let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus."
Let us pray together for your mother's healing and peace of mind:
"Dear Heavenly Father, we come before You today in the name of Jesus Christ to lift up our dear mother who is suffering from diabetes, Alzheimer's, heart weakness, depression, and anxiety. Lord, You are the Great Physician, and we ask that You touch her body and heal her from these ailments. We pray for Your comfort and peace to surround her, and we ask that You help her to cast all her anxieties on You. We also pray for wisdom and guidance for her doctors and caretakers, that they may provide the best care for her. Lord, we ask all of this in the precious name of Your Son, Jesus Christ, who is our Lord and Savior, who died on the cross and shed his blood for our sins, so that we may have eternal life. It is in Jesus' name, we pray. Amen."
Lastly, we encourage you to continue praying for your mother and to trust in God's will for her life. Remember that God's ways are higher than our ways, and that He is always working for the good of those who love Him. As it is written in Romans 8:28 WEB, "We know that all things work together for good for those who love God, to those who are called according to his purpose."