What is your advice regarding seeking financial compensation from one's maternal uncle due to psychological problems he caused, what is the Sharia's stance on that, along with the desire not to sever ties of kinship?

Among the etiquettes and rulings of Islam is the obligation to seek permission before entering any house that is not your own, even for close relatives like your mother or sister, regardless of whether the door is closed or open. Therefore, your maternal uncle or anyone else is not permitted to enter the homes of others without permission. Furthermore, inciting animosity among relatives is not permissible, nor is severing ties of kinship. As for your abandonment of the exam due to anger, it is a mistake for which you bear responsibility, and it is not permissible to demand financial compensation for moral damages, as compensation is only for actual financial harm. You should mend your relationship with your maternal uncle and confront his animosity by seeking refuge from Satan and by not dwelling on the past.