Is there any sin upon one who screamed, wept, and said, "O my Lord!" and "Would that it were me and not you!" upon the death of his mother, then regretted it and sought forgiveness?

Screaming over the deceased and uttering bad words that indicate impatience and a lack of perseverance are forbidden, for the Prophet, peace and blessings be upon him, said: "He is not one of us who strikes the cheeks or tears the collars," and "I am innocent of those who shave, shriek, and tear." "Al-Salq" is raising the voice in crying and uttering ugly words. If you did that unconsciously, there is nothing upon you. However, if you did it consciously, you have sinned, and you must perform sincere repentance, which is abstaining from the sin, regretting it, and resolving not to return to it.