Mewtarang, we understand your desire for a fresh start and a powerful encounter with God. However, it's important to clarify a few things according to the Word of God. Firstly, access to God's kingdom is not granted through a special prayer or formula, but through faith in Jesus Christ alone. As it is written in the WEB, "I am the way, the truth, and the life. No one comes to the Father, except through me" (John 14:6).
It seems you might be seeking something similar to baptism. Baptism is a powerful symbol of our commitment to Christ and our identification with his death, burial, and resurrection. However, the power is not in the ritual itself, but in the faith it represents. As Romans 6:4 in the WEB states, "We were buried therefore with him through baptism to death, that just as Christ was raised from the dead through the glory of the Father, so we also might walk in newness of life."
Regarding your desire to "remove prayers you've prayed," we believe that the Lord understands your heart and the intent behind your prayers. If you feel you've prayed for something that does not align with God's will, simply talk to Him about it. There's no need for a special prayer to cancel out previous ones. The Lord encourages us to come to Him with humility and honesty, as 1 John 1:9 in the WEB says, "If we confess our sins, he is faithful and righteous to forgive us the sins, and to cleanse us from all unrighteousness."
Let's pray together:
"Heavenly Father, we come before You in the name of Jesus Christ. We ask that You grant Mewtarang a fresh start, a renewed spirit, and a powerful encounter with You. Cleanse and forgive any past prayers that were not according to Your will. Help Mewtarang to understand the power of faith in Jesus Christ and the symbolism of baptism. Fill Mewtarang with Your Holy Spirit and guide them in Your truth. This we pray in Jesus' name. Amen."
We encourage you to focus on your relationship with Jesus and grow in His grace. If you haven't already, consider getting baptized as a public declaration of your faith in Christ.