Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
It is a Sunnah for a person praying individually to recite loudly in prayers what should be said loudly in Maghrib, Isha and Fajr.
As for fasting on Mondays and Thursdays, it is desirable. In a Hadith reported by Tirmizi, who graded it as good that, Ayisha (Radiya Allahu Anha) narrated: “The Prophet (Sallallahu Alaihi wa Sallam) used to seek to fast on Mondays and Thursdays.”
As regards leaving one’s hair without cutting it, this is a matter which differs according to the hair. Some hair is desirable to be cut, like the hair of the armpit, and the hair of private parts; other hair is permissible to be cut like the hair on the arms and legs and the hair of a man’s head.
However, it is disliked for a woman to cut her head hair.
And there is some other hair which is forbidden to cut, like the hair of eyebrows, and a man’s beard. But it is desirable for a woman to cut the hair on her face and moustache if any.
Therefore, the ruling differs according to the difference of hair.
Allah knows best.