I seek forgiveness from Allah and turn to Him in repentance

You can say: "O Allah, I ask You for forgiveness for all my sins, both minor and major. I seek Your forgiveness as many times as my soul has tempted me to sin, and I seek Your forgiveness for the number of days of my life, before death and after it. I seek Your forgiveness until the moon tires, and until the sun rises from its west. I seek Your forgiveness for the number of those who seek Your forgiveness, and for the number of those who glorify You, and for the count of every small and big thing in the universe. I seek Your forgiveness until You forgive me and admit me to Paradise." We do not know when we will die; perhaps it will be a continuous charity. (O Allah, send blessings and peace upon our Prophet Muhammad)