How can one regain chastity and control over desires and the self after feeling drawn towards sins, losing the desire to repent, and drifting away from acts of obedience?

To maintain steadfastness and revive acts of worship, supplicate frequently, associate with righteous people, and avoid evil ones. Recall the greatness of Allah and feel shy before Him when sin whispers to you. Remember death, Paradise, and Hellfire to soften your heart, and recite the Quran with contemplation. Utilize virtuous times, increase acts of obedience, and strive against your lower self. Seek refuge in Allah from Satan and his schemes, especially the temptation of women. Fast frequently, for whoever strives, Allah will aid him.