What is the ruling on an individual praying alone in his home if he feels closer to his Lord in doing so than in praying with the Muslim congregation in the mosque, due to psychological pressures that have caused him to dislike mixing with others?

Prayer in congregation is obligatory, and the hadith of Abu Hurayrah (may Allah be pleased with him) testifies to this. What the questioner is experiencing is not considered an excuse that prevents him from attending congregational prayer. He must strive against himself, increase his faith, and seek refuge in Allah Almighty. Indeed, his eagerness for the mosque and performing prayer in congregation is among the greatest things that will help him overcome what he is experiencing, for mosques are places of tranquility for souls and a means of connecting with Allah. This is attested to by the hadith of Abu Hurayrah (may Allah be pleased with him): "No people gather in one of the houses of Allah, reciting the Book of Allah and studying it among themselves, except that tranquility descends upon them, mercy envelops them, angels surround them, and Allah mentions them among those with Him."