We understand that you're going through a challenging time at work and we're here to support you in prayer and to provide biblical guidance.
Firstly, it's commendable that you're determined to work harder when you feel better. It shows your commitment and responsibility towards your work. However, it's also important to remember that God wants us to give our best in all circumstances, not just when we feel good. As it is written in Colossians 3:23 WEB, Whatever you do, work heartily, as for the Lord, and not for men.
Regarding your supervisor, it's important to pray for their discernment and understanding. However, we should also pray for your own growth and strength. Pray that God helps you to overcome your mistakes and to perform your duties to the best of your ability. Remember, God's mercy is new every morning, and His faithfulness is great. (Lamentations 3:22-23 WEB)
Let's pray together:
Heavenly Father, we come before You in Jesus' name, lifting up our fellow believer. Lord, we ask for Your healing touch upon them, that they may be restored to full health and strength. We pray for their supervisor, that You would grant them wisdom and understanding, helping them to see the potential and value in this individual. We also pray for grace over their life, that they would be empowered to overcome mistakes and to give their best in all circumstances, knowing that they ultimately serve You, Lord. We thank You for Your unfailing love and faithfulness. In Jesus' name, we pray. Amen.
Lastly, we encourage you to continue trusting in God's plan for your life. He is faithful, and He will not let you down. As you walk in obedience to Him, He will direct your paths and cause all things to work together for your good. (Romans 8:28 WEB)