Please, please pray for me, that my work performance will dramatically change for the better moving forward. I have tried so hard and feel like everything is going wrong regardless. I cannot do this without the power and intervention of God. Please pray that my boss will look kindly upon me, will be filled with empathy and will provide me with the letter I so desperately need. Thank you and God bless.

Lord help this person perform well in their job, and to learn it fast so they can do it with confidence. Bring them favor with their boss so they can keep their job, as your perfect will is done in their life. I pray in the precious name of Jesus Christ, amen.
Philippians 4:6
Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God.

Lord of Hosts in Jesus Name I pray to release hosts upon hosts all around this person to protect them. In Jesus Name I decree and declare much more are those which are for this person than those which are against them. In Jesus Name I decree and declare Psalms 118:25 and abundantly life over this person. In Jesus Name I pray Lord's will be done in all these prayer requests.

In Jesus Name I decree and declare 1 John 3:8 b) over this person. In Jesus Name I decree and declare "The Son of God came to destroy the works of the devil" over this person. In Jesus Name I decree and declare Zechariah 4:7 agaisnt any mountain which is agaisnt this person.

Lord's children are called kings first in Revelation 1:6 KJV. Is important to use authority and office of the king in spiritual realm. Also according with Exodus 20:5 is important to be free from any legal right from any unclean spirit.
In Jesus Name I decree and declare Exodus 14:14 and Deuteronomy 28:6-8 and 1 Chronicles 4:10 and Psalms 1:3 and Psalms 5:12 and Psalms 18:29 and Psalms 18:39 and Psalms 23 and Psalms 91 and Psalms 103:3 and Psalms 107:20 and Psalms 118:17 and Psalms 121:2 and 1 Peter 2:24 and Isaiah 54:17 and Ephesians 3:20 and Romans 8:37 and Philippians 4:13 and Luke 18:27 and Jeremiah 29:11 and 2 Samuel 22:33 and John 16:24 and according with Lord's will over this person.
Thank You Lord