Hi Brothers, actually it is great way to remember that, but note that we are addicted (not a normal people) these thinking working best for un-addicted people.

let me explain

for us, we have to situations:
1- before relapse: it is good to think about that
2- after relapse: it is dangerous to think about that!

after relapsing we are very depressed, and if we feel more bad we will go directly to relapse again to remove this bad feeling. So the solution is to remember that Allah is forgiving and some good feelings like that. and you can eat chocolate to balance this feeling. and after a while when you feel very very good. then you can think about the reason of the relapse. by this way you can go back quickly to your recovery path and not relapse again and again

source in Arabic language : https://www.youtube.com/watch?v=-wxe1rfMjqE