ANSWER:

This is a continuous fight between you and Satan and it would not end except when you die and leave this life. 

The bad part is that the more you sin, the weaker your remorse will get until you don’t feel bad about it anymore, rather you begin to enjoy it and want it.

You have no other choice but to fight it and block it before it becomes normal in your system and this is when satan wins and you lose! 

QUESTION: I pray all voluntary prayers, including Tahajjud, I read and memorize Qur’an daily, but Shaytan manages to get to me to the point that I also keep making the same sin in between the prayers, and when I oppose the waswasa for more than a few minutes, I begin to feel physically weaker. I keep failing, and coming back to Allah in repentance, but my questions is, am I doing something wrong sheikh, or