What is the way to get rid of the constant thinking about death and the intense fear of it, which has affected the questioner's daily life, along with his desire to enter Paradise?

Remembering death is a good thing if it motivates preparation for meeting Allah, and it is a sign of a heart awakened from heedlessness. The Prophet encouraged frequent remembrance of death due to its benefits, such as cultivating asceticism in worldly matters and yearning for the Hereafter. However, the remembrance of death should not be a cause for disrupting life or neglecting duties and developing the earth; rather, it is an action that benefits one after death. Your fear of Allah may be a reason for the forgiveness of your sins and entry into Paradise, because Allah does not combine two fears upon His servant. But you must couple fear with hope in Allah's mercy to achieve balance, for fear and hope are like two wings of a bird. Do not let your fear of death disrupt your life and lead you to neglect the rights of your family. We advise you to maintain prayers on time and with the congregation, abandon sins such as forbidden glances, and avoid dealing with usurious banks.