I am having trouble to understand why Nietzche wants to get rid of guilt. From what I understand he claims that guilt was introduced by the ressintiment of the oppressed slaves as a way to vent their revenge. However humans don't have free will neither are ends of some purpose or god. As such all accountability and thus all guilt can be redeemed. I agree with all of that, however I still see value in guilt regardless of the existence of "free will". I believe the only way humans can guarantee to keep a promise is through guilt. For example, lets say I promise to my self to go to the gym:
If I can't experience guilt and my will to go to the gym is weaker than my will to not go to the gym then I will not go to the gym.
If however I experience guilt then regardless of what my will wills guilt will motivate to go to the gym.
So I believe guilt to be necessary condition of responsibility. Because there can be no responsibility if I can't keep a promise to my self.
Thus I believe guilt to be necessary for self overcoming and the will to power because it allows humans to take responsibility for their selves, thus having control of the future actions of their selves.
Any thoughts are highly appreciated