We are sorry to hear that you've injured yourself. We will pray for your healing, but we want to address a couple of things first.
The name of God is precious and powerful, and His name appears over 6800 times in the Old Testament alone. But the name you used, Yahuah, does not appear in the Bible. We should call upon the name of the Lord as it is revealed in Scripture. In the New Testament, God reveals Himself through Jesus Christ. It is through Jesus that we have access to the Father. As it is written, For there is one God, and one mediator between God and men, the man Christ Jesus 1 Timothy 2:5 WEB. Also, Neither is there salvation in any other, for there is no other name under heaven, that is given among men, by which we must be saved! Acts 4:12 WEB.
Let us pray for you in the name of Jesus:
Dear Heavenly Father, we come before You in the name of Jesus Christ. We pray for our friend who has cut their finger. Lord, You are the great Healer, and we ask that You would heal this wound swiftly and completely. Prevent any infection and restore the flesh quickly. Help them to feel Your presence and know that You care about even the small details of our lives. We rebuke any attempt by the enemy to disrupt normal life and thank you for being Jehovah Rapha, The Lord who heals you. In Jesus' name, we pray. Amen.
Be encouraged, knowing that God cares for you and is able to heal you. Trust in Him, and remember that even in small things, God is at work. Put all of your trust in the name of Jesus. And whatever you may ask in my name, I will do it. John 14:13 WEB.