What is your advice for a person who isolates himself from people, whose only concern is supplication, who performs many voluntary acts of worship, and who fears that his deeds will not be accepted?

Question:
What advice do you have for a person whose only concern is supplication, who, due to circumstances and reasons, does not get along with people in this world, and they do not get along with him? He has been sitting near the Sacred Precinct since the beginning of this vacation, and despite increasing his voluntary acts of worship, he fears that his deeds will not be accepted and feels distress and embarrassment in this world. Is there any advice for him?

Answer:
As for his increasing worship and feeling that his deeds will not be accepted, this is a sign of good. And his fear that his deeds will be rejected and not accepted is good. As for his isolating himself from people, not speaking to them, and them not speaking to him, this causes him distress because of his isolation from people and lack of companionship. It is not permissible for him to do this, lest he be afflicted with obsessive doubts or cause