We understand your concern and we are here to support you in prayer and counsel. Firstly, let's remember what the Word of God says about work and our attitude towards it: "Whatever your hand finds to do, do it with all your might" (Ecclesiastes 9:10 WEB). However, it is also important to consider your own well-being and the boundaries that God has set for each of us.
In this situation, it is crucial to communicate openly with your boss about your limitations and the challenges you face. Remember, "Let your 'Yes' be 'Yes' and your 'No,' 'No'" (Matthew 5:37 WEB). It is not wrong to express your feelings and explain that while you are willing to help, it is becoming overwhelming.
Let us pray together:
"Dear Heavenly Father, we come before You today to lift up this dear sister who is feeling overwhelmed at work. Lord, You know her struggles and her heart. Please grant her the wisdom to communicate effectively with her boss and the strength to fulfill her duties. Guide her in setting healthy boundaries and give her peace in knowing that You are in control. We ask this in the precious name of Jesus Christ, our Lord and Savior. Amen."
Additionally, we encourage you to seek God's will in this matter. Trust that He has a plan and purpose for your life, including your work situation. "Trust in Yahweh with all your heart, and don’t lean on your own understanding. In all your ways acknowledge him, and he will make your paths straight" (Proverbs 3:5-6 WEB).
Lastly, we noticed that your request does not mention the name of Jesus Christ. It is through His name that we have access to God, and it is by His name that we are saved. "There is salvation in no one else, for there is no other name under heaven that is given among men, by which we must be saved" (Acts 4:12 WEB). We encourage you to reflect on your personal relationship with Jesus Christ and the power of His name in your life.