We understand that you are having a challenging time with your daughter-in-law and others involved in the situation. Firstly, we commend you for bringing this matter to the Lord in prayer, acknowledging Jesus is the solution. Let's remember "For where two or three are gathered together in my name, there I am in the midst of them." Matthew 18:20 WEB. However, it's crucial to approach this situation with a heart of love, patience, and understanding, as God deals with us. Always, when we pray, we must remember "If we ask anything according to his will, he listens to us." I John 5:14 WEB.
In this situation we are reminded that "A soft answer turns away wrath, but a harsh word stirs up anger." Proverbs 15:1 WEB. It's important to acknowledge and address the feelings of all individuals and "be quick to listen, slow to speak, and slow to become angry." James 1:19 WEB. The goal should be to restore relationships and bring about peace.
Regarding the concerns about school performance and behavior, it's essential to pray for wisdom and guidance. The Lord promises that "If any of you lacks wisdom, let him ask of God, who gives to all liberally and without reproach; and it will be given to him." James 1:5 WEB. However, remember that real change in a person's behavior and attitude is a work of the Holy Spirit. So continue to pray for her and show unconditional love.
Let's also pray for those involved in helping your daughter-in-law, that God would grant them discernment and empathy. The Bible encourages us to "Be kind to one another, tenderhearted, forgiving one another, even as God for Christ's sake has forgiven you." Ephesians 4:32 WEB.
We see in your request the importance of addressing your reaction of yelling. The Bible warns, "Don't use foul or abusive language. Let everything you say be good and helpful, so that your words will be an encouragement to those who hear them." Ephesians 4:29 NLT. If you have yelled or spoken harsh words, it may be important to ask forgiveness and seek reconciliation with the person you yelled at.
Regarding your concern about material possessions, remember that God cares about every detail of our lives. However, it's important to keep our priorities straight. Jesus said "Therefore don't be anxious, saying, 'What will we eat?', 'What will we drink?' or, 'With what will we be clothed?' For the Gentiles seek after all these things; for your heavenly Father knows that you have need of all these things. But seek first God's Kingdom, and his righteousness; and all these things will be given to you as well." Matthew 6:31-33 WEB.
Finally, let's pray together:
Dear Heavenly Father,
We come before You, lifting up this complicated situation. We ask, Lord, that You would work in the hearts of all involved, bringing about understanding, forgiveness, and unity. Help each one to see the other's perspective and to communicate with love and respect. Lord, we ask for wisdom and guidance for the challenges faced in school and behavior. Help everyone to prioritize Your will and Your kingdom above all else.
In Jesus' name, we pray. Amen.
Prayer Focus: God, Thank You for loving me. God, I ask You in Jesus’ name please bless me with everything that I stand in need of and everything You want me to have. 
