ANSWER:

This is not recommended as this is mandating something on yourself that Allah didn’t oblige you to do.

I have a weakness for a certain sin, but I hope Allah enables me to overcome it. In effort to do so, I want to start fasting 3 days(randomly picked) each time I commit this sin. Is it okay? If so, are there days I may be prohibited to do such fasting?

Oaths | June 23, 2019 2:37 am
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If i am forced to make a promise by someone not to do something or if i make a promise and break it as i truthly did not have any knowledge at all on how serious it is to break a oath and realize after and ask for forgiveness to allah is there any sin on me and am i obliged to offer any expiation regardless of this as i felt deep regret?
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I made a promise to allah that I will never drink again when I was really drunk and intoxicated, is that promise valid ?