What should I do about my stingy father who does not pay zakat on his money, deposits money in a usurious bank, and wants me to work to avoid his financial, psychological, and family problems, especially since talking to him is useless?

The bad morals of a father or his shortcomings in fulfilling the rights of Allah and His servants do not negate his right to be honored. Righteousness towards him is obligatory, and kindness to him is necessary, even if he is a disbeliever, based on the words of Allah Almighty: "And your Lord has decreed that you shall not worship except Him, and to parents, a good treatment..." (verses). Disobeying one's parents is among the gravest sins, for there are three whom Allah will not look at on the Day of Resurrection: "The disobedient to his parents..." Honoring one's parents is a characteristic of noble souls and expiates sins, and through it, prayers are answered. Therefore, you must honor your father, maintain ties with him, treat him gently, advise him with wisdom and kindness, and adhere to patience, for it is a great virtue. If you find lawful work, there is no harm in that. Consult righteous and trustworthy people.