No, I have not yet observed any improvement. I haven't focussed on it either, I'm still working on the alternative front end.

Have a good start to Ramadan! In Christianity, we're also currently in fasting-time: seven weeks until Easter (this year at the beginning of April - this high festival also has to do with the moon). However, "our" Lent doesn't have quite as strict rituals as yours. Many people abstain from eating meat, sweets and alcohol. Ultimately, it's about conscious renunciation (which can also be something quite unique) or better (because it's expressed positively): conscious, mindful living.