I’ve touched this topic before, but I will touch it again. This is to all the brothers out there whose excuse to miss prayers and fasts is, “bro I am going to swear, I can’t help it, I will end up breaking my fast, so, I might as well not keep it”.

My previous argument against such a thought was based on Allah’s love for his creation and don’t you forget you are his creation and every creator loves his creation.
http://www.keepingithalal.com/50/post/2010/12/religion-he-is-more-forgiving.html

But, this time around I’ll take it a step further. If you’re fasting or praying and you’re trying your best not to swear or whatever other vice you’ve habituated to, but you commit it, carry on. Carry on your
prayer, as would someone who can’t help but pass wind or stay in a state of purity. This is not to say that you should not do your best to curtail your habit, attempt to as would a person facing constant
states of impurity would seek medical help, you too should seek help where available and I know old habits die hard.

But, that’s the beauty of it though. The harder it is for you, the more abundantly God rewards you. So, who knows, besides the almighty, your prayers and act of good will might be more rewarding than that pious brother in the corner with his big beard and thobe on.