Is falling into sin immediately after obedience a sign of disobedience not being accepted or a sign of hypocrisy? And how can one permanently rid themselves of these sins?

A Muslim's falling into sin immediately after performing acts of worship does not necessarily indicate that their deeds have not been accepted. One should strive to ponder the Quran and be mindful of God's majesty during night prayers, for this cultivates fear and faith in the heart, from which a Muslim finds sweetness. When faith settles in the heart, Satan finds no way to it, which helps in avoiding sins. The difficulty of affairs due to sins is possible, but not inevitable, and it should serve as an impetus to avoid disobedience.