A pious girl went through a psychological period that caused her to fall back, and upon her return, she did not feel the same sweetness as the first time. What should she do?

Question:
May Allah reward you with good and do you well. She says about herself: "I used to be a girl who memorized the Book of Allah, wore the niqab, and worked as a caller to the mosque. Then I went through a psychological and health period, and I left all of this. I tried to return, but I did not feel the same beautiful feeling I used to feel when standing in night prayer, the tranquility that used to fill my heart, and the great faith strength through which I felt stronger than Shaytan, may Allah curse him. As for now, my imagination frightens me; nightmares and disturbing dreams pursue me, and I am afraid of the smallest thing. I do not find the old sweetness in myself when I read the Qur'an. I do not know what happened, and I do not know how to act. Guide us, may Allah reward you with good."

Answer:
What appears from the situation is that the questioner is being targeted by Shaytan. It seems she will find healing and well-being. She should have tranquility and not pay attention to this waswas (whispering) or fear and panic from it. She should increase the remembrance of Allah (Glorified and Exalted is He), seek refuge in Allah from the accursed Shaytan, and increase in reciting the Qur'an and dhikr (remembrance of Allah). By doing so, this burden will be removed from her, by the permission of Allah. If she acts upon these two matters: first, that she does not surrender to this waswas, does not fear it, and does not feel distressed by it, but rather rejects it and does not turn to it. The second thing is that she occupies herself with the remembrance of Allah and seeking refuge in Allah from the accursed Shaytan, and what she is experiencing will go away from her, by the permission of Allah.